{"id":22123,"date":"2026-06-21T03:33:00","date_gmt":"2026-06-21T03:33:00","guid":{"rendered":"https:\/\/www.sysinfotools.com\/blog\/?p=22123"},"modified":"2026-08-25T11:06:44","modified_gmt":"2026-08-25T11:06:44","slug":"fix-posix-61-error-apple-mail","status":"publish","type":"post","link":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/","title":{"rendered":"Fix POSIX 61 Error Apple Mail on Mac: 2026 Complete Guide"},"content":{"rendered":"<div class=\"p-4 mb-4\" style=\"border: 2px solid #005EFF; border-radius: 30px;\">\n<p style=\"text-align: center;\"><em><span style=\"font-weight: 400;\">\u201cI cannot receive emails or send through my Apple Mail, and instead constantly receive the same error message: Cannot get mail, the mail server is not responding. I don\u2019t want to delete my account or lose any emails and data present within it. Any suggestions on how I can fix POSIX Error 61 Mac Mail, and access my data easily?\u201d<\/span><\/em><\/p>\n<p style=\"text-align: right;\"><strong><em>&#8211;<\/em><\/strong><strong> r\/Applehelp, Reddit Forum<\/strong><\/p>\n<\/div>\n<div class=\"block_sum\">\n<p>You are ready to send an important email, and your Apple Mail seems to be working fine. Even the internet connectivity is stable, too. However, suddenly your Apple Mail responds with a cryptic error message stating, \u201cCannot get the mail. The connection to the server failed. Network Error: POSIX 61.\u201d This is a common network connectivity issue and thus can halt your regular operations. To resolve this, the guide explains reliable solutions and a <strong> SysInfo <\/strong><a href=\"https:\/\/www.sysinfotools.com\/recovery\/mbox-converter.php\" target=\"_blank\" rel=\"noopener\"><strong>Apple Mail MBOX Converter<\/strong><\/a> to ensure you maintain backups to prevent such hectic errors.<\/p>\n<div class=\"blog-btn\">\n<ul id=\"db-btn-container\" class=\"nav nav-tabs mt-4\" role=\"tablist\">\n<li class=\"nav-item\"><a id=\"windows-tab\" class=\"nav-link active\" role=\"tab\" href=\"#windows\" data-toggle=\"tab\" aria-controls=\"windows\" aria-selected=\"true\"><i class=\"icon-windows\"><\/i> Windows<\/a><\/li>\n<li class=\"nav-item\"><a id=\"mac-tab\" class=\"nav-link\" role=\"tab\" href=\"#mac\" data-toggle=\"tab\" aria-controls=\"mac\" aria-selected=\"false\"><i class=\"icon-apple\"><\/i> Mac<\/a><\/li>\n<\/ul>\n<div id=\"db-btn-containerContent\" class=\"tab-content my-2\">\n<div id=\"windows\" class=\"tab-pane fade active show\" role=\"tabpanel\" aria-labelledby=\"windows-tab\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/SysInfo-MBOX-Exporter-Demo.exe\"><i class=\"icon-windows\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/mbox-exporter.php\" target=\"_blank\" rel=\"noopener\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/div>\n<div id=\"mac\" class=\"tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"mac-tab\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/Sysinfo-MBOX-Exporter-for-mac.dmg\"><i class=\"icon-apple\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/mac-mbox-exporter.php\" target=\"_blank\" rel=\"noopener\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/div>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#Resolve_POSIX_61_Error_Apple_Mail\" >Resolve POSIX 61 Error Apple Mail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#How_to_Fix_POSIX_61_Error_Apple_Mail_on_Mac\" >How to Fix POSIX 61 Error Apple Mail on Mac?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#Troubleshoot_Fix_Error_POSIX_in_Apple_Mail\" >Troubleshoot &amp; Fix Error POSIX in Apple Mail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#Quick_Scalable_Fix_POSIX_61_Error_Apple_Mail_on_Mac\" >Quick &amp; Scalable Fix POSIX 61 Error Apple Mail on Mac<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#Ideal_Practices_Must_Follow_to_Prevent_Error_POSIX_61\" >Ideal Practices Must Follow to Prevent Error POSIX 61\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#Wrapping_Up\" >Wrapping Up\u00a0<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Resolve_POSIX_61_Error_Apple_Mail\"><\/span>Resolve POSIX 61 Error Apple Mail<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The error code POSIX 61 refers to <strong><em>\u201cConnection Server Refused\u201d. <\/em><\/strong>It occurs on all your Mac, iPhone, iPad, while trying to connect with the server, but is blocked by the network. It isn\u2019t any random glitch and can interrupt the entire operations on your Apple Mail. Here, the Mac Mail tries to connect with the incoming IMAP and outgoing SMTP servers, but the request is rejected, and the connection fails.\u00a0<\/p>\n<p><strong>Symptoms Found Due to POSIX 61 Error\u00a0<\/strong><\/p>\n<p>When this error is encountered, you may find the following issues:<\/p>\n<ul>\n<li aria-level=\"1\">Message failures-unable to send\u00a0<\/li>\n<li aria-level=\"1\">Mails stuck in the Outbox\u00a0<\/li>\n<li aria-level=\"1\">Sync issues and connection timeouts\u00a0<\/li>\n<li aria-level=\"1\">Repetitive account authentication\u00a0<\/li>\n<li aria-level=\"1\">Apple Mail shows \u201cCannot Connect\u201d errors\u00a0<\/li>\n<li aria-level=\"1\">Frequent SMTP authentication errors\u00a0<\/li>\n<li aria-level=\"1\">Missed communications between teams and clients<\/li>\n<li aria-level=\"1\">Delayed investigations, approvals, and responses\u00a0<\/li>\n<\/ul>\n<p><strong>Common Causes of the Mac Mail Error\u00a0<\/strong><\/p>\n<p>The significant reasons why the POSIX 61 Error Apple Mail arises are:<\/p>\n<ul>\n<li aria-level=\"1\">Incorrect server settings, particularly SMTP<\/li>\n<li aria-level=\"1\">Temporary downtime in the email server availability\u00a0<\/li>\n<li aria-level=\"1\">Blocked emails for communication due to firewall\/security settings\u00a0<\/li>\n<li aria-level=\"1\">Duplicacy because of several connections to the same mailbox\u00a0<\/li>\n<li aria-level=\"1\">Damaged or corrupted configuration files interrupting communications<\/li>\n<li aria-level=\"1\">Unstable network connectivity can create conflicts and thus, errors\u00a0<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Fix_POSIX_61_Error_Apple_Mail_on_Mac\"><\/span>How to Fix POSIX 61 Error Apple Mail on Mac?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are a few manual workarounds you can follow to resolve this Mac Mail error. However, ensure that if nothing seems to work, try accessing your data via Mac Mail MBOX File Converter and prepare a backup for the same. Follow the step-by-step guide as mentioned in this section.\u00a0<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Troubleshoot_Fix_Error_POSIX_in_Apple_Mail\"><\/span>Troubleshoot &amp; Fix Error POSIX in Apple Mail<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Follow the guide given here to resolve the Apple configurator network issue and get access to the emails:<\/p>\n<h4>1) Check and Reset Mail Server Settings\u00a0<\/h4>\n<ol>\n<li aria-level=\"1\">Initially, open the <strong>Mail Server <\/strong>on the web and connect with your email provider to verify server uptime.\u00a0<\/li>\n<li aria-level=\"1\">Then, go to <strong>Apple Mail<\/strong> and click on <strong>Settings<\/strong>. Next, move to <strong>Accounts<\/strong>.<\/li>\n<li aria-level=\"1\">Tap <strong>Server Settings<\/strong> and check all the <strong>Incoming, Outgoing, Port, <\/strong>and<strong> SSL Settings<\/strong>.\u00a0<\/li>\n<li aria-level=\"1\">Compare the settings with the official recommendations to make sure nothing is wrong.\u00a0<\/li>\n<\/ol>\n<h4>2) Disable Security or Switch Network\u00a0<\/h4>\n<ol>\n<li aria-level=\"1\">Open the <strong>macOS Firewall Settings<\/strong>. <strong>Disable<\/strong> it temporarily.\u00a0<\/li>\n<li aria-level=\"1\">Test your <strong>Apple Mail<\/strong> and add it as an exception.\u00a0<\/li>\n<li aria-level=\"1\">Also, try to <strong>connect with a different network <\/strong>and use a <strong>mobile hotspot<\/strong> to connect.\u00a0<\/li>\n<li aria-level=\"1\">Confirm that your <strong>ISP<\/strong> doesn\u2019t block the ports during mail transfer.\u00a0<\/li>\n<\/ol>\n<h4>3) Use Terminal to Fix\u00a0<\/h4>\n<ol>\n<li aria-level=\"1\">Open a terminal and run the given command to <strong>flush DNS cache<\/strong>:<\/li>\n<table border=\"1\">\n<tbody>\n<tr>\n<td>\n<p><strong>sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder<\/strong><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<li aria-level=\"1\">It will resolve any <strong>DNS-related connectivity<\/strong> issues and <a href=\"https:\/\/www.sysinfotools.com\/blog\/apple-mail-not-receiving-emails\/\" target=\"_blank\" rel=\"noopener\"><strong>fix Apple Mail not receiving emails<\/strong><\/a>.\u00a0<\/li>\n<li aria-level=\"1\">Again, test your <strong>server connectivity<\/strong> with the command:<\/li>\n<table border=\"1\">\n<tbody>\n<tr>\n<td>\n<p><strong>telnet mail.server.com 587<\/strong><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/ol>\n<h4>4) Reset Preferences and Rebuild Mailbox\u00a0<\/h4>\n<ol>\n<li aria-level=\"1\">Start by <strong>closing Apple Mail<\/strong> and then go to<strong> ~\/Library\/Preferences\/<\/strong>.\u00a0<\/li>\n<li aria-level=\"1\">Find and identify the <strong>Mail Preference files<\/strong>. <strong>Remove<\/strong> them.\u00a0<\/li>\n<li aria-level=\"1\">Restart your <strong>Apple Mail<\/strong> and choose the <strong>corrupted mailbox<\/strong>.\u00a0<\/li>\n<li aria-level=\"1\">Tap <strong>Mailbox <\/strong>and finally, <strong>Rebuild<\/strong> for the fix. Refresh the mailbox and complete sync.\u00a0<\/li>\n<\/ol>\n<h4>5) Eliminate Duplicate Mail Copies<\/h4>\n<ol>\n<li aria-level=\"1\">Open the <strong>System Settings<\/strong> and go to the <strong>Internet Accounts.<\/strong>\u00a0<\/li>\n<li aria-level=\"1\">Further, review configured <strong>Mail accounts <\/strong>and identify<strong> duplicates.\u00a0<\/strong><\/li>\n<li aria-level=\"1\"><strong>Remove<\/strong> the unnecessary <strong>Mail copies<\/strong>, restart <strong>Apple Mail,<\/strong> and test again.\u00a0<\/li>\n<\/ol>\n<h4>6) Delete and Re-Add Apple Mail Account\u00a0<\/h4>\n<ol>\n<li aria-level=\"1\">First, start <strong>Apple Mail<\/strong> and <strong>delete<\/strong> your <strong>existing account.<\/strong>\u00a0<\/li>\n<li aria-level=\"1\">Then, restart Apple Mail and <strong>add the account <\/strong>with the correct credentials.\u00a0<\/li>\n<li aria-level=\"1\">Ensure your emails are synced with the server before deletion.\u00a0<\/li>\n<li aria-level=\"1\">Later,<strong> backup<\/strong> your mailboxes too, if really necessary.\u00a0<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Quick_Scalable_Fix_POSIX_61_Error_Apple_Mail_on_Mac\"><\/span>Quick &amp; Scalable Fix POSIX 61 Error Apple Mail on Mac<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If none of the above manual methods can help you <a href=\"https:\/\/www.sysinfotools.com\/solve-error\/mac-mail-error-while-moving-messages.html\" target=\"_blank\" rel=\"noopener\"><strong>fix Mac Mail error while moving messages<\/strong><\/a><strong>, <\/strong>then use <strong>SysInfo Apple Mail MBOX Exporter. <\/strong>This ultimate utility allows you to sync all the Apple Mail emails fetched via an active profile on the Mac OS or MBOX files and restore them in multiple formats or email clients securely with zero loss. You can manage data effectively and ensure that every email and folder is kept intact with 100% accuracy and precision.\u00a0<\/p>\n<p><strong>Steps to Backup Emails via MBOX Converter:<\/strong><\/p>\n<ol>\n<li aria-level=\"1\">Launch the <strong>Apple Mail Converter<\/strong> and tap the <strong>Continue<\/strong> button.<strong>\u00a0<br \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.sysinfotools.com\/asset\/img\/screenshot\/mbox-exporter\/s1.webp\" alt=\"Launch the Apple Mail Converter and tap the Continue button\" width=\"676\" height=\"428\" \/><br \/><\/strong><\/li>\n<li aria-level=\"1\">Then, select your <strong>Apple Mail profile on Mac<\/strong> or upload <strong>MBOX<\/strong> files. Tap <strong>Proceed<\/strong>.<strong>\u00a0<br \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.sysinfotools.com\/asset\/img\/screenshot\/mbox-exporter\/s2.webp\" alt=\"select your Apple Mail profile on Mac or upload MBOX files. Tap Proceed\" width=\"676\" height=\"428\" \/><br \/><\/strong><\/li>\n<li aria-level=\"1\">Further, check the contents within your email, select folders, and hit <strong>Proceed<\/strong>.<strong>\u00a0<br \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.sysinfotools.com\/asset\/img\/screenshot\/mbox-exporter\/s3.webp\" alt=\"Further, check the contents within your email, select folders, and hit Proceed\" width=\"676\" height=\"428\" \/><br \/><\/strong><\/li>\n<li aria-level=\"1\">Pick where you want to <strong>export<\/strong> your Apple Mail data and use the<strong> filters.<\/strong>\u00a0<br \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.sysinfotools.com\/asset\/img\/screenshot\/mbox-exporter\/s4.webp\" alt=\"Pick where you want to export your Apple Mail data and use the filters\" width=\"676\" height=\"428\" \/><\/li>\n<li aria-level=\"1\">Finally, pick a destination via<strong> Browse<\/strong> to restore and click <strong>Start Export<\/strong>.\u00a0<br \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.sysinfotools.com\/asset\/img\/screenshot\/mbox-exporter\/s6.webp\" alt=\"pick a destination via Browse to restore and click Start Export\" width=\"676\" height=\"428\" \/><\/li>\n<\/ol>\n<p><strong>Note:<\/strong> You can use the <a href=\"https:\/\/www.sysinfotools.com\/icloud-backup.php\"><strong>iCloud Mail Backup Tool<\/strong><\/a> if your <em>Apple Mail syncs emails with iCloud, but only for the official accounts created with <\/em><strong><em>@icloud.com, @me.com, or @mac.com<\/em><\/strong><em>.\u00a0<\/em><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ideal_Practices_Must_Follow_to_Prevent_Error_POSIX_61\"><\/span>Ideal Practices Must Follow to Prevent Error POSIX 61\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In order to prevent this Apple Mail error in the future, ensure you fulfill these:<\/p>\n<ul>\n<li aria-level=\"1\">Keep your macOS updated and verify the SMTP settings\u00a0<\/li>\n<li aria-level=\"1\">Remove unused Apple Mail accounts or duplicate emails\u00a0<\/li>\n<li aria-level=\"1\">Maintain a stable network connection and use secure authentication\u00a0<\/li>\n<li aria-level=\"1\">Don\u2019t use public or restricted networks for email access<\/li>\n<li aria-level=\"1\">Opt for trusted firewall and antivirus software with proper configurations<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Wrapping_Up\"><\/span>Wrapping Up\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Error code POSIX 61 in your Apple Mail may seem like a complex issue, but it is just a technical problem due to network connectivity issues. With proper measures and troubleshooting, you can easily resolve the error. If the native solutions don\u2019t work to fix POSIX 61 Error Apple Mail on Mac, then you can use the professional SysInfo MBOX Exporter to maintain a data backup and securely access emails across platforms. You can even avail the <a href=\"https:\/\/www.sysinfotools.com\/one-time-service\/\"><strong>One-Time Service <\/strong><\/a>to experience a no software installation data management, or for any concerns, reach out to the <a href=\"https:\/\/vm.providesupport.com\/0pi295uz3ga080c7lxqxxuaoxr\"><strong>technical support 24\/7<\/strong><\/a>.<\/p>\n<h4 class=\"faq_heading\">Frequently Asked Questions<\/h4>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1781861233085\"><strong class=\"schema-faq-question\">Q1. Does POSIX 61 Error affect sending or receiving emails?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans.<\/strong> Mostly, sending emails via SMTP server is affected the most with the POSIX 61 Error in Apple Mail. The incoming of emails via IMAP and synchronizations is occasionally possible.\u00a0<br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1781861288521\"><strong class=\"schema-faq-question\">Q2. Can incorrect SMTP settings trigger POSIX 61 Error?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans. <\/strong>The most common reasons for the occurrence of this Apple Mail POSIX 61 Error are incorrect SMTP settings. Therefore, you must verify the correct server names, authentication settings, SSL configurations, and port numbers to fix error POSIX in Apple Mail.\u00a0<br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1781861305266\"><strong class=\"schema-faq-question\">Q3. How do I fix POSIX Error 61 in Apple Mail on Mac without losing emails?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans. <\/strong>Check your SMTP settings, remove duplicates, temporarily disable security firewall and antivirus, and delete and re-add mailboxes. All of them must help resolve the error without any costs. However, if they don\u2019t work and you need to secure emails, use the SysInfo MBX File Converter Tool for Apple Mail.\u00a0<br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1781861323498\"><strong class=\"schema-faq-question\">Q4. Can removing and re-adding the email account fix POSIX 61 Error?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans. <\/strong>Removing and re-adding the email account often corrects the corrupted settings and restores proper server communication. You can refresh and restart Apple Mail once you do so.\u00a0<br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1781861341418\"><strong class=\"schema-faq-question\">Q5. Should I remove duplicate mail accounts if I see POSIX Error 61?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans. <\/strong>Yes, of course, you must remove duplicate emails to resolve POSIX 61 Error Apple Mail. They generally create authentication conflicts and synchronization issues, which must be eliminated for simplified email sending and receiving.\u00a0<br><\/p> <\/div> <\/div>\n\n\n\n<p><\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;22123&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Fix POSIX 61 Error Apple Mail on Mac: 2026 Complete Guide&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Rate this post<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u201cI cannot receive emails or send through my Apple Mail, and instead constantly receive the same error message: Cannot get<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":22129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[528],"tags":[],"class_list":["post-22123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mail-management"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fix POSIX 61 Error Apple Mail on Mac: 2026 Complete Guide<\/title>\n<meta name=\"description\" content=\"Fix the POSIX 61 error in Apple Mail on macOS with complete 2026 guide. Explore troubleshooting methods to resolve email connection problems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fix POSIX 61 Error Apple Mail on Mac: 2026 Complete Guide\" \/>\n<meta property=\"og:description\" content=\"Fix the POSIX 61 error in Apple Mail on macOS with complete 2026 guide. 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With a background in computer science and a passion for writing, I thrive to deliver complex technical content in simple layman terms.\",\"sameAs\":[\"https:\/\/www.sysinfotools.com\/\",\"https:\/\/www.linkedin.com\/in\/simran-bhatia-190169299\"],\"url\":\"https:\/\/www.sysinfotools.com\/blog\/author\/admin\/\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861233085\",\"position\":1,\"url\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861233085\",\"name\":\"Q1. Does POSIX 61 Error affect sending or receiving emails?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans.<\/strong> Mostly, sending emails via SMTP server is affected the most with the POSIX 61 Error in Apple Mail. The incoming of emails via IMAP and synchronizations is occasionally possible.\u00a0<br>\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861288521\",\"position\":2,\"url\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861288521\",\"name\":\"Q2. Can incorrect SMTP settings trigger POSIX 61 Error?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans. <\/strong>The most common reasons for the occurrence of this Apple Mail POSIX 61 Error are incorrect SMTP settings. Therefore, you must verify the correct server names, authentication settings, SSL configurations, and port numbers to fix error POSIX in Apple Mail.\u00a0<br>\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861305266\",\"position\":3,\"url\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861305266\",\"name\":\"Q3. How do I fix POSIX Error 61 in Apple Mail on Mac without losing emails?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans. <\/strong>Check your SMTP settings, remove duplicates, temporarily disable security firewall and antivirus, and delete and re-add mailboxes. All of them must help resolve the error without any costs. However, if they don\u2019t work and you need to secure emails, use the SysInfo MBX File Converter Tool for Apple Mail.\u00a0<br>\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861323498\",\"position\":4,\"url\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861323498\",\"name\":\"Q4. Can removing and re-adding the email account fix POSIX 61 Error?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans. <\/strong>Removing and re-adding the email account often corrects the corrupted settings and restores proper server communication. You can refresh and restart Apple Mail once you do so.\u00a0<br>\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861341418\",\"position\":5,\"url\":\"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861341418\",\"name\":\"Q5. Should I remove duplicate mail accounts if I see POSIX Error 61?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans. <\/strong>Yes, of course, you must remove duplicate emails to resolve POSIX 61 Error Apple Mail. 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With a background in computer science and a passion for writing, I thrive to deliver complex technical content in simple layman terms.","sameAs":["https:\/\/www.sysinfotools.com\/","https:\/\/www.linkedin.com\/in\/simran-bhatia-190169299"],"url":"https:\/\/www.sysinfotools.com\/blog\/author\/admin\/"},{"@type":"Question","@id":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861233085","position":1,"url":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861233085","name":"Q1. Does POSIX 61 Error affect sending or receiving emails?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans.<\/strong> Mostly, sending emails via SMTP server is affected the most with the POSIX 61 Error in Apple Mail. The incoming of emails via IMAP and synchronizations is occasionally possible.\u00a0<br>","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861288521","position":2,"url":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861288521","name":"Q2. Can incorrect SMTP settings trigger POSIX 61 Error?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans. <\/strong>The most common reasons for the occurrence of this Apple Mail POSIX 61 Error are incorrect SMTP settings. Therefore, you must verify the correct server names, authentication settings, SSL configurations, and port numbers to fix error POSIX in Apple Mail.\u00a0<br>","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861305266","position":3,"url":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861305266","name":"Q3. How do I fix POSIX Error 61 in Apple Mail on Mac without losing emails?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans. <\/strong>Check your SMTP settings, remove duplicates, temporarily disable security firewall and antivirus, and delete and re-add mailboxes. All of them must help resolve the error without any costs. However, if they don\u2019t work and you need to secure emails, use the SysInfo MBX File Converter Tool for Apple Mail.\u00a0<br>","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861323498","position":4,"url":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861323498","name":"Q4. Can removing and re-adding the email account fix POSIX 61 Error?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans. <\/strong>Removing and re-adding the email account often corrects the corrupted settings and restores proper server communication. You can refresh and restart Apple Mail once you do so.\u00a0<br>","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861341418","position":5,"url":"https:\/\/www.sysinfotools.com\/blog\/fix-posix-61-error-apple-mail\/#faq-question-1781861341418","name":"Q5. Should I remove duplicate mail accounts if I see POSIX Error 61?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans. <\/strong>Yes, of course, you must remove duplicate emails to resolve POSIX 61 Error Apple Mail. They generally create authentication conflicts and synchronization issues, which must be eliminated for simplified email sending and receiving.\u00a0<br>","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/posts\/22123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/comments?post=22123"}],"version-history":[{"count":6,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/posts\/22123\/revisions"}],"predecessor-version":[{"id":22131,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/posts\/22123\/revisions\/22131"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/media\/22129"}],"wp:attachment":[{"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/media?parent=22123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/categories?post=22123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sysinfotools.com\/blog\/wp-json\/wp\/v2\/tags?post=22123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}