--On Saturday, August 22, 2020 11:15 AM -0400 Jered Floyd
<je...@convivian.com> wrote:
Like most ISPs, they have a feedback loop to remove malicious users. I
assume it is too slow, so a SendGrid account ID RBL would provide
meaningful value.
On 8/22/2020 3:35 PM, Kenneth Porter wrote:
Would not Pyzor accomplish the same thing? Submit the SendGrid spam
to Pyzor to quickly get it blacklisted.
On 22.08.20 17:23, Rob McEwen wrote:
sendgrid list can do the filtering at the SMTP-envelope level - BEFORE
the message is even downloaded - for some systems with millions of
users - that is a HUGE advantage.
(2) being filterable at the SMTP-Envelope level opens up possibilities
for things like MTA plugins or feature additions - that enable this
filtering at the MTA level - for MTAs that do NOT try to do any
content filtering of the message. That creates more options for
deployment where many will hopefully be able to make use of this, who
don't have Pyzor (for whatever reasons)
well, do we have anything available now to block at SMTP level?
- postfix policy server?
- milter?
so far I have noticed only SA plugins. Which is not bad, but that HUGE
advantage is not usable now.
--
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