TechRinger ~
Moving email folders to a new server during a server migration ought to be easy. Email migration should be as easy as pressing a button in cPanel’s Backup Wizard. And it is!
In cPanel we can make a full backup of a server account. This back up stores emails and email account information in the directory homedir/mail/. But, what do we do when we want to move emails from one server to another without taking a full back up of the server space? How do we migrate webmail emails between a server when the origin server has multiple addon domains or when we want only the emails and no other data?
Here is a quick and easy way to export all emails from one server and import them into another.
Assumptions
The domain name of the email accounts has not changed.
The new web server is devoid of emails for the email accounts being moved to it. The email restoration process deletes existing email profile data.
Both servers use cPanel & Dovecot. Dovecot is usually installed with cPanel. This email migration process can be adapted to non cPanel server management software. This guide provides instructions for backing up and restoring emails for cPanel accounts only.
Server webmail migration guide
Step 1: Backup and download email folders
In this step we create an export file that contains the emails stored on server 1. This will be our email backup file.
Login to cPanel on server 1
Open File Manager
Go up one directory above public_html (see image 1)
Enter the mail directory (see image 2)
Right-click the directory with the same name as the domain the emails belong to (see image 2)
Compress the directory
Download the compressed file. You might need to reload the directory to see it
The ‘mail’ directory contains subdirectories for each email domain. Each subdirectory is named after the domain the emails belong to. Every subdirectory with a domain name contains mail folders for that domain. For example, the emails for all of JournalXtra’s email addresses are stored in /mail/journalxtra.com e.g. /mail/journalxtra.com/webmaster and /mail/journalxtra.com/noreply.
Image 1: Navigate to the ‘mail’ directory Image 2: Compress the mail directory for the domain being migrated Image 3: Recreate email accounts on server 2
Step 2: Restore email backups
In this step we import the email backup file into server 2.
Login to cPanel on server 2
Use cPanel to recreate the email accounts (see image 3)
Open File Manager
Go up one directory above public_html (see image 1)
Enter the mail directory (see image 2)
Upload the email backup file
Unzip the file
Delete the zip file
Open webmail
Configure Webmail to show the new email folders
We recreate the email addresses on server 2 before we unzip the backup file because otherwise cPanel deletes the migrated emails when new accounts are created.
Email migration can be easy
Email migration between servers is straight forward. Create an email directory export file. Recreate email accounts on the target server before uploading the export file. Upload the export file to the target server.
The webmail migration method explained above here works when the domain name of the source server is the same as the domain name of the target server. I’ve yet to migrate email accounts between two servers with different domain names but I figure in such a case I could use sed or awk to rewrite the source server domain name written in the export file.
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