On 05.03.17 10:38, Marc Perkel wrote:
Well, new to me. Maybe others have thought of this.
Many domains send nothing but good email and if you whitelist them
based on FCRDNS all is good. Been doing that.
But ...
Many domains send nothing but good email and they send through
reputable email sender services which are mostly good by not perfect.
So can't just whitelist that.
What I'm doing now is whitelisting the domains that are good, but
doing SPF checks on the from address.
do you mean the header From: address?
because anyone doing SPF does spf checks does what you describe on the
envelope from: addres.
If the from address is whitelisted AND the SPF of the from address is
good - I pass the email.
or do you do this on MTA-level (which means it's off-topic)?
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
I intend to live forever - so far so good.
