Emails suddenly disappear when deleted in all my clients

Hello,

You will not be able to preserve the individual emails if a user sets up an email client using POP3 and downloads the messages without configuring an option in their email client to leave a copy on the server. However, you can save messages with the "Archive" feature in cPanel. It's documented at:

Email Archives

Thank you.

 

It's likely one of those email clients is configured to download the messages from the server. You can search for the email address in /var/log/maillog to see the IMAP activity for the account with a command such as:

Code:

grep email@domain /var/log/maillog

However, you may need to consult with your web hosting provider if you don't have root access to the system, as this command requires root access to the system. The alternative solution is to change the password to the email client, and check the email with each email client individually until you can determine which one is deleting the messages from the server.

Thank you.