For some reason Gmail has started blocking e-mail from my domain (flanigan.net).
I have had DKIM (opendkim), DMARC (opendmarc), and SPF implemented for some time. I am not on any of the SPAM or issues list that I can find. I have no history of bad behavior or issues, and I have no problem with sending e-mail to any other domain (yahoo, outlook.com, etc, etc).
The message I get back is unhelpful. I have filled in all the forms and done all the Gmail help guides I can find.
I just do e-mail from home use and for some friends and charities I support. All said and done only 40 users. Again no history of issues or SPAM.
Bounced Message Headers below:
Subject: Returned mail: see transcript for details Date: 2016-12-16 11:10 From: Mail Delivery Subsystem To:
The original message was received at Fri, 16 Dec 2016 11:10:19 -0500 from >ns1.flanigan.net [IPv6:::1]
----- The following addresses had permanent fatal errors ----- >> (reason: 550-5.7.1 [2600:3c02::f03c:91ff:fe89:bda4 12] Our system has detected that)
----- Transcript of session follows ----- ... while talking to gmail-smtp-in.l.google.com.: DATA 550-5.7.1 [2600:3c02::f03c:91ff:fe89:bda4 12] Our system has detected that 550-5.7.1 this message is likely unsolicited mail. To reduce the amount of spam 550-5.7.1 sent to Gmail, this message has been blocked. Please visit <<< 550-5.7.1 https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1 for more information. u1si2266860ywd.269 - gsmtp 554 5.0.0 Service unavailable
Reporting-MTA: dns; ns1.flanigan.net Arrival-Date: Fri, 16 Dec 2016 11:10:19 -0500