Forum Discussion
Anti-Spoofing Protection & MailChimp
We use MailChimp to send out campaign emails to thousands of people, a lot of which are part of our internal organization. We have SPF, DKIM set up, and it appears they are passing, but the anti-spoofing protection sends about half of the emails to the Junk folder in our user inboxes. There doesn't seem to be any consistence to it either.
I have found in the message headers
...compauth=fail reason=601
...CTRY:US;EFV:NLI;SFV:SPM;...
...PTR:mail247.suw121.mcdlv.net;MX:1;A:1;CAT:SPOOF;
What am I missing here?
DMcGehee Hi, did you include MailChimps servers to your SPF record?
We do have the TXT records in the domain for SPF. There are no CNAME records for DKIM. Could that cause this?
TXT gxxxxxxxn.com v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com -all 3599 TXT gxxxxxxxn.com MS=ms45659264 3599 DMcGehee The record seems to be correct based on MailChimp documentation at https://mailchimp.com/help/set-up-custom-domain-authentication-dkim-and-spf/ Also the mail247.suw121.mcdlv.net (198.2.185.247) is part of the IP range specified at MailChimp servers (198.2.128.0/18) so SPF check shouldn't be failing.
Hard to say really. Try adding the DKIM records + signing, it could help. Also, I suggest you add a DMARC record. However, there doesn't seem to be much more you can do about it.
