Since we installed (or maybe gmail activated spam control) we have problems to send emails to gmail.com
Its a real problem or us because some customers use gmail accounts. I have setup SPF records, ptr, and so. so don't know what could be wrong
. Of course, i'm sure we don't send spam!. the only difference between our installation server and falko howto, we added maia mailguard to server.
I post you the message when we send email to gmail (of course we tried to contact gmail, and it's imposible, they ghave an autoresponse support and that's all, we dont get reply from human):
Asunto: Undelivered Mail Returned to Sender
This is the Postfix program at host mailsrv0098.ourmaindomain.com.
I'm sorry to have to inform you that your message could not be be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The Postfix program
<firstname.lastname@example.org>: host gmail-smtp-in.l.google.com[188.8.131.52]
550-5.7.1 Our system has detected an unusual amount of unsolicited
550-5.7.1 mail originating from your IP address. To protect our
users from spam, mail sent from your IP address has been 550-5.7.1
rejected. Please visit 550-5.7.1
to review 550 5.7.1 our Bulk
Email Senders Guidelines. y18si783770hua (in reply to end of DATA
What could be wrong please? i searched in google for info, and many people have same problem
By the way our ip is no in blacklist, i checked it in dnstuff.
thanks for help