Emails blocked by Google

[tforeman]

Hi,

 

We are currently having issues sending messages from our domain to all Google addresses. We have checked our SPF, DKIM & DMARC records are setup correctly.

We get a bounce back message that says :

 

host gmail-smtp-in.l.google.com [2607:f8b0:4004:c06::1b]

SMTP error from remote mail server after end of data:

550-5.7.1 [2001:978:2a01:0:6:0:1089:1091 7] 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 for more

550 5.7.1 information. w26-20020a05620a0e9a00b00773ae74632asi1246387qkm.604 - gsmtp

 

Google are not being helpful & blaming Microsoft even though the same thing happens when messages are sent from Sendgrid.

Does anyone know a solution to this or how we can contact someone useful at Google to help?

[pete]

Where are you sending email from?

 

That second IP resolves to mailanyone.net, which is (I assume) a bulk mailing service so I'm inclined to agree with Google.

[tforeman]

The second IP belongs to Vipre which we use as our email security gateway, all email is sent and received through them.

Its not just the IP that is blocked, it seems that our domain is blocked as Sendgrid uses a different delivery method.

[mavhc]

Do you have dmarc sending you delivery reports so you can tell if anyone's using your domain to spam?

 

What are your rejection policies for SPF/DKIM failing?