Looking for an A record on what - just the email address domain or the
chain of parent domains as well? If the latter, well a lack of A record
will cause this to fail so it's kind of embedded in.
Quick sampling of 10 emails: 8 of them have valid A records on the email
domain. I presumed SpamAssassin was already doing simple checks like that.
On 3/1/2019 10:23 AM, RW wrote:
On Wed, 27 Feb 2019 12:16:20 -0500
Mike Marynowski wrote:
Almost all of the spam emails that are
coming through do not have a working website at the room domain of
the sender.
Did you establish what fraction of this spam could be caught just by
looking for an A record?
