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))
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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/
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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.