21 Sep
2017
21 Sep
'17
3:30 a.m.
On Thu, 21 Sep 2017, Robert Brockway wrote:
I do some additional tricks like requring the sending
MTA to hold the connection open for (IIRC) 10 seconds before I will accept traffic. This
drives up spammers costs (and everyone elses :( ) but definitely helps.
We have 3 MX records with weights 10 50 100, but only the second one has an SMTP server
behind it. This tends to discourage spammers.
(Postfix, Ubuntu, on a Rackspace instance)
-L