I hate to bring this topic up again but people should perhaps be aware
that some legitimate IETF mail is now being automatically spam filtered
for gmail recipients. Here is an anonymized version of what I just wrote
to someone.
Be aware that as a result of corporate IT decisions at your company and
at Google, your mail to IETF lists is being forcibly tagged as spam for
gmail recipients.
1) Example is announcing DMARC p=reject policy:
_dmarc.example.com text =
"v=DMARC1; p=reject; sp=reject"
2) gmail asserts a DMARC failure when your mail has been forwarded
by an IETF list such as XYZ:
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of XYZ-bounces@xxxxxxxx designates 2001:xxxxxxxxx as permitted sender)
smtp.mail=XYZ-bounces@xxxxxxxx;
dkim=pass header.i=@ietf.org;
dmarc=fail (p=REJECT dis=NONE) header.from=example.com
3) then gmail forcibly classes your message as spam.
Since many IETF participants use gmail, many people (myself included)
will not be seeing your mail unless they happen to check their spam
folder.
Regards
Brian Carpenter