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Joined: 21 Apr 2007
Posts: 15
Location: Kraków

PostPosted: Tue Dec 17, 2013 11:34 am    Post subject: Gmail - delivery problem Reply with quote


I am not sure if it is right place, but maybe someone had or has the same problem.
Two weeks ago a GMAIL started treat me like a spammer or person who sends bulk messages. I have not idea why.

Very often after send e-mail to someone in Gmail I get this message:

SMTP error from remote mail server after initial connection: host []:
421-4.7.0 [my_ip] Our system has detected an unusual amount of\n421-4.7.0 unsolicited mail originating from your IP address. To protect our
421-4.7.0 users from spam, mail sent from your IP address has been temporarily\n421-4.7.0 blocked. Please visit
421 4.7.0 to review our Bulk Email Senders Guidelines. ya3si494470lbb.131 - gsmtp

I checked server and nobody, never sent any bulk messages or spam - only some users redirected mail gmail.

I also check configuration of my server by:


Everything is OK. I am not on any blacklist, nothing!
I am aware that Gmail only delays the delivery of the message, but sometimes it takes too long. ;-(

Has anyone had this problem?

Even filled out the form, but I'm not sure what it's worth.

Best Regards,
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