Apologies for asking but what the gmail standards? Anything from
yahoo.com, some of Google's own alerts, and items from
lists.dwarfstd.org were all marked as spam.
They really won't tell you. I run into problems with them from time to
time, they seem to want to only talk to microsoft.com type domains and
other big email domains. Which is odd because a lot of junk comes from
them. Maybe they get a cut. Or maybe Gmail just wants you to use it
instead of anything else.
However setting up SPF records is a very good start. Alembic follows
DMARC standards by using SPF which is considered a pass by pretty much
everyone but does not do DKIM (mainly because it's a pain to set up on
the client).
A good place to start is:
https://tools.socketlabs.com/dmarc/generator
Also helps to do TLS encryption which requires real certs. LetsEncrypt
is an excellent way to get a trusted cert on your system without paying
$100's per year.
https://support.google.com/a/answer/9276512
Good basic mail tester
test-vckcjz...@srv1.mail-tester.com
Better advanced tester.
https://www.checktls.com/TestReceiver
Anyway, hope this helps.
CZ
N.
There are a lot of how-to's on the web, each mail server is different
and there is no simple fix that applies to all. Bill
