Fix postfix issue

I setting up new server Debian stretch using virtualmin and I am getting this error from postfix

May 20 20:30:40 SERVER postfix/smtp[29749]: 9FFFB1281D7D: to=<[login to view URL]@SERVER>, orig_to=<john@[login to view URL]>, relay=none, delay=0.03, delays=0.03/0/0/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=SERVER type=AAAA: Host not found)

if you can walk me through it great or teamview in.

Thanks

Debian DNS Linux Amministratore di sistema Ubuntu

Rif. progetto: #17009074

Info sul progetto