Migrate mail data to google workspace

I had a company that want to migrate their workloads to google workspace, coming from a cpanel and a classic email service they want to migrate the whole emails to the new accounts. 

I found 2 approach to this kind of work. One is the migration tool of google workspace in the admin console. And another one is imapsync, which I found really good and run very smooth on linux. 

 

For the google workspace migration tool is easy. 

• Navigate to Data (or Account)Then select Data import & export
• Finally, choose Data Migration (New)
• For migrating from cPanel, you will select Other IMAP Server as the Migration Source. 
• You will then enter the IMAP server address (e.g., mail.yourdomain.com) and a role account's credentials from your cPanel hosting to establish a connection. 

 

 

First you need to create the accounts on the admin console of google workspace. Then on each user enable MFA on each user account. 

Second, create a app password.

https://myaccount.google.com/u/2/apppasswords

Downlaod and install imapsync.

https://imapsync.lamiral.info/dist2/ 

 

Run imapsync and migrate the folders.

imapsync \

--host1 source.domain.com --user1 source@domain.com --password1 'password' --ssl1 \

--host2 imap.gmail.com --user2 destination@domain.com --password2 'app password' --ssl2 \

--justfolders

 

Run imapsync with --dry to check if everything will go fine.

imapsync \

--host1 source.domain.com --user1 source@domain.com --password1 'password' --ssl1 \

--host2 imap.gmail.com --user2 destination@domain.com --password2 'app password' --ssl2 \

--dry

 

 Finally, run the migration.

imapsync \

--host1 source.domain.com --user1 source@domain.com --password1 'password' --ssl1 \

--host2 imap.gmail.com --user2 destination@domain.com --password2 'app password' --ssl2

 

Will migrate everything even the trash. 

 

 

 

Conclusion: 

 Both tools are good, I found only one issue with data migration tool on one account, this was the only issue. If I can choose one, the best for me is imapsync.

Both tools are slow, for an account with 17k emails took about 12 hours to fully migrate.