Ability to store domain mail content in the domain folder
Please add the ability to store domain mail content in the domain folder like in cPanel /home/$user/mail/domain.tld/emailuser/
In this case, it will be possible manually create a backup for website and mail content just by copying /home/$user/ folder and after restore this folder on the destination server.
Copy-transfer-insert operations on emails are frequently done, but are a flawed and unsafe method to migrate emails as just one single update (e.g. an incoming mail or an edit on either source or target) while the copying process is not yet completed can break indexes and render the target copy useless.
Providing direct access to mail files from a web space account will also have end users experiment with the files directly, which again will cause a high number of support cases with providers who lease webspace to their users.
Instead, please consider using the free "Site Import" extension which includes a "Mail Import" function, too. With that you can very easily and in a perfectly safe way migrate mailboxes between servers without the need to use a separate migration tool.
The request did not become popular anyway, so we must decline it.
-- PD