On Thu, 2010-03-04 at 13:42 -0700, Craig White wrote:
At this stage, I simply will not accept mail from any smtp server
whose forward & reverse DNS don't match. So if you are sending me
e-mails from server
mail.example.com you better have a reverse DNS
address that tells me that your ip address points to
mail.example.com.
That's a rather bad idea, and simply not workable for an *awful* lot of
people. You *will* be rejecting legit mail with that methodology.
Although many of us have our own domains, many of them will be hosted by
a service which hosts hundreds or thousands of other sites using virtual
named based hosting. We don't each get an IP, and it's completely
impractical to expect that in an IPv4 world. The reverse IP will point
to the host's domain name, not ours.
You need to do *better* testing than simply forward and reverse checking
of one domain name.
--
[tim@localhost ~]$ uname -r
2.6.27.25-78.2.56.fc9.i686
Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.