Question

My IP is blocked as SPAM by Hotmail and Gmail

I have a service in Postfix but now the messages are not being delivered checked the mail queued and find that Gmail and Hotmail is rejecting my deliveries and I have marked as SPAM, do not use my drop to send spam, just personal mailings.

That I can do to fix it?

1EC48449F0 2454124 Wed Jun 17 22:08:07 info@mail.dnc (host mx2.hotmail.com[65.55.92.136] said: 550 SC-002 (SNT004-MC1F9) Unfortunately, messages from XXX.XXX.XXX.XXX weren’t sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL FROM command))

115B544456 1620 Wed Jun 17 10:32:59 info@otherdomain.dnc (host aspmx.l.google.com[74.125.22.27] said: 550-5.7.1 [XXX.XXX.XXX.XXX] Our system has detected that this message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550 5.7.1 https://support.google.com/mail/answer/188131 for more information. w53si5629300qge.37 - gsmtp (in reply to end of DATA command))


Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

I have the same issue with my mail address.

We are a small rent a car company and when I tray to replay to my clients I get the error SMTP error from remote mail server after pipelined MAIL FROM:info@rentpoint.al SIZE=6335: 550 5.7.1 Unfortunately, messages from [162.144.159.50] weren’t sent. Please contact your Internet service provider since part of their network is on our block list (S3140).

https://www.rentpoint.al/

This comment has been deleted

Out of interest, was your email fully configured with SPF record and DKIM? Also, again just out of interest, were you using either Gmail or Hotmail as a relay and are you using either of their paid services, such as Gmail’s Apps for Business, or M$'s Office 365 for example, or are you using their free services? Also, again just out of interest, what port was you sending from? I know it’s a lot of questions… I’m just curious. Cheers and good luck getting things sorted.