mail sent to mailbox instead of Maildir

[JoeVena]

I'm using Maildir but these a few days, the mails for some users ware gone. Checking the log I found that those mails were "delivered to mailbox".

I then delete the users and recreate them. The problem for those users gone but it happens again to other users.

I have no idea what happened.

Please help.

Joe Vena

[till]

Is the Maildir checkbox in ISPConfig server settings enabled?

[JoeVena]

yes.

I have around 100 mail users. But it happens to only a few. The others work perfectly.

[falko]

Please try this:
postconf -e 'home_mailbox = Maildir/'
postconf -e 'mailbox_command ='
/etc/init.d/postfix restart