Hi I just setup ISPConfig on my server and added a domain on it, however it seems like the reverse DNS doesn't work and my mail is being filtered out by mail servers like Hotmail Closer look at my reverse dns records at /etc/bind9/ revealed no problems? I see pri.164.85.XX.in-addr.arpa Code: $TTL 86400 @ IN SOA ns1.mydomain.com. hostmaster.mydomain.com. ( 2008021408 ; serial, todays date + todays serial # 28800 ; Refresh 7200 ; Retry 604800 ; Expire 86400) ; Minimum TTL NS ns1.mydomain.com. NS ns2.mydomain.com. 9 PTR domain1.com. 9 PTR www.domain1.com. 9 PTR domain2.com. 9 PTR www.domain2.com. ;;;; MAKE MANUAL ENTRIES BELOW THIS LINE! ;;;; named.conf Code: zone "164.85.XX.in-addr.arpa" { type master; file "pri.164.85.XX.in-addr.arpa"; };