
4 Oct
2018
4 Oct
'18
1:06 a.m.
Quoting Trent W. Buck (trentbuck@gmail.com):
Rick Moen via luv-talk wrote:
2. SMTP servers require valid rDNS that matches forward lookup.
Note how I forgot this one in my earlier checklist :-)
And the bit about a strongly asserted SPF reference record, making your point further. ;->