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Written By
Suman Rawat -
Approved By
Sonika Rawat -
Updated on
November 14th, 2025 -
Read Time
7 minutes
It is quite difficult to manage mailboxes during server migration and especially when you are handling Outlook PSTs. The teams that tend to shift from desktop clients to cPanel webmail mostly face this problem since PST is not supported by cPanel. Therefore, this guide elaborates on how you can securely and instantly import PST to cPanel. This is done either with a full control manual process or an automated PST Converter Tool to help with a clean, secure, and complete migration.
PST (Personal Storage Table) files are Outlook’s proprietary format for storing emails, contacts, calendars, and other data. cPanel Webmail (Horde/Roundcube) uses IMAP instead of PST, making it impossible to upload a PST file directly.
The PST file must be imported into an IMAP-configured client. Or migrated using a compatible tool that allows for direct PST import to IMAP.
For IT teams managing something on a larger scale, like “125 users migrating from an on-premise Exchange environment to a Linux-based cPanel server“. The accuracy of the PST import process is directly correlated with helpdesk load and user satisfaction.
With the aforementioned reasons, you can identify the need for this migration. So, let’s proceed with the main highlight of the context.
With the advancements and several options available, the import has become a feasible task for everyone. Still, some unavoidable cons come alongwith the manual procedure. Below you will find out all about it and a professional tool that overcomes these difficulties without any trouble. But, before you proceed with this migration, some prerequisites must be fulfilled.
Pre-Migration Checklist
If you have access to your active Outlook account, then this method is suitable for you. But it is only suitable for smaller sets of migration and may require effort. The steps to follow are:
Step 1: Configuring Outlook and cPanel Account
Step 2: Import PST to cPanel Webmail
Note: Ensure that you choose IMAP as the option for cPanel configuration because it is not possible with POP3.
Loopholes:
In this method, you first need to convert PST to MBOX. This is because the MBOX format is supported by cPanel clients. Do this either with Thunderbird, or you can import PST to Apple Mail. Either way, you will receive a resultant MBOX file. Once received, follow these steps:
Note: This method too has limitations similar to the above manual method and is quite hectic to perform.
SysInfo PST Converter Tool is a highly reliable and all-in-one solution for your bulk-level migrations. It enables the import of multiple PST files of any size at once with accuracy and precision directly to the cPanel account securely via IMAP. Additionally, its easy-to-use interface is suitable for all novice and tech experts and works across all major OS versions. Moreover, it provides a scalable workflow without Outlook installation and automatically handles everything.
Whether it is high-speed transfers or folder structure and email content preservation, the tool performs at its best. It leaves no scope for downtime, loss, and also has a “Demo Version” for pre-evaluation and a few free conversions with 24*7 Expert Support.
For those who are worried about installing software or require a complete, no-hassle, quick import. Avail SysInfo One-Time Service, where our highly qualified technical professionals transfer all your PST files to cPanel accounts like never before.
05 Steps to Import PST Files from Outlook to cPanel
This method reduces your manual workload, provides efficiency and speed, all while saving costs with effective licence plans.
There are some key factors that only SysAdmins tend to know about the migration from Outlook to cPanel through PST import. These are:
Insight: Some Roundcube installations reject PST emails during the sync as they have oversized attachments.
Solution: Use the PST Migration Tool for automatic compression and handling.
Insight: IMAP Ports are generally switched by the host provider for security concerns. This interrupts the connection.
Solution: Confirm the IMAP Mapping (Port and Host) before you start the bulk migration manually or automatically.
Insight: Horde Mail from cPanel shows the names of the folders differently from the original one. Like “Sent Mail” is shown as “Sent Items” or “Sent Messages”.
Solution: Don’t panic and simply check for the most similar alternative. Or maintain the same name with the professional PST Converter.
These are some things you must ensure when you transfer Outlook PST to cPanel for a successful outcome.
Importing PST to cPanel is extremely important when you need to access Outlook mailbox data on the servers. With the right approach, this task becomes quite easy and streamlined without any major risks involved. The manual methods available are alright if you are working at a small scale and do not need to incur any costs. But for large-scale and complete migrations without too much effort and zero loss, straightforwardly download the expert software.
Ans- Usually yes, but the folder names may appear differently, or Outlook may misinterpret them. So, it is better to use the PST File Converter to avoid these issues.
Ans- Well, no. Roundcube and Horde cPanel webmail don’t have any direct option for PST import. Hence, use the PST Converter for this task.
About The Author:
Suman Rawat is a technical content writer and expert in the fields of email migration, data recovery, and email backup. Her passion for helping people has led her to resolve many user queries related to data conversion and cloud backup.
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