On Monday 27 July 2009 14:14:54 Cameron Camp wrote: > If I have a box with a valid reverse DNS entry of mail.example.com that > has virtual domains of > > domain.com > otherdomain.com > somedomain.com > > will my "wrong" reverse DNS for the virtual domains affect delivery?
We cannot guess what millions of clueless wannabe spam-eliminators are doing at their sites. It should not ... but it might. > Do I need to do anything? Of course you do. DTRT. $myhostname[1] should resolve to the IP address from which you are sending, and the PTR for that IP address should resolve to $myhostname. http://en.wikipedia.org/wiki/FCrDNS [1] Strictly speaking, it's $smtp_helo_name which should resolve, but the default value for smtp_helo_name is $myhostname, and I would not generally recommend setting smtp_helo_name without good reason. -- Offlist mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header
