Gmail rejects messages from new exim4 setup

Николай Шехавцов asked:

I have problem with delivering mails to GMail from a new server setup with configured exim4.

Messages sometime passed to gmail spam folder. But sometimes it rejects immediatelly. I have attached a success of incoming message to gmail.

Here is message source:

I have tried disable ipv6 in exim4 without socuces. GMail already have in logs my pubic IPv6.

BUT. I have a right PTR and SPF records which shows in source as PASS.

I have no any ideas where I can get a help. I have used a google support page for get a support from google. but no any answers got in 10 days…

I dont know what I can todo. Can anyone helps me?

Source of returned mail , here also is a reason why it’s returned. The DMARC, SPF, and PTRs of my server IP is normal and displayed in delivered emails as PASS. Here is a test result from

My answer:

Haha, I think any message with the subject Привет is a bit suspicious!

But seriously, here is the relevant bit of the SMTP failure:

    550-5.7.1 [2a01:4f8:1c1c:b36a::3      12] Our system has detected that this
    550-5.7.1 message is likely unsolicited mail. To reduce the amount of spam sent
    550-5.7.1 to Gmail, this message has been blocked. Please visit
    550 5.7.1  for more information. o18si5225169wrq.380 - gsmtp

If you visit that link, it will explain that you can use Gmail Postmaster Tools to register your domain and get more information about why messages are rejected or marked as spam.

Gmail Postmaster Tools provides senders with metrics on parameters such as reputation, spam rate, feedback loop, etc. It can help you check compliance to the Gmail bulk sender guidelines, as well as identify issues that can cause trouble with the spam filter.

Register at, verify your domain, and then check the Delivery Errors Dashboard to find detailed information about why each message is rejected.

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