Seems I have made a wrong mail configuration on my ispconfig 3.1.13. First of all it is possible to call my site by mail.domain.de. Second when I type the URL named before, than the apache standard configuraton site is showing, What is wrong ? I don't want the it is possible to call mail.domain.com for my site, furthermore how to remove the apache standard configuration site, by forbid to call this URL ? I'm using imap.domain.de for to receive mails. My domains are reversed directly on DNS server to the IP of my ispconfig server. Is there an error ? This was the same I was using before with Plesk. Is there any configuration step I missed for ispconfig ? Mailboxes are working. I discovered that now it is possible to call mail.domain.de today after checking suspected serverlogs.