Hi I have setup an ispconfig server with latest version. I want for a specific email whatever is coming to send a copy to a gmail account. i have setup on the specific email to send a copy. I am receiving correctly the copy of my email the problem is that the sender of the email receives an email that the copy was not send successful.
Here is the error that the sender gets. But the email in gmail delivered ok This is the mail system at host websrv.myserver.gr. I'm sorry to have to inform you that your message could not 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 mail system <[email protected]>: host gmail-smtp-in.l.google.com[2a00:1450:4013:xxxx::xx] said: 550-5.7.1 [2a01:4f8:c17:xxxx::xxxx] Our system has detected that this message does 550-5.7.1 not meet IPv6 sending guidelines regarding PTR records and 550-5.7.1 authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=IPv6AuthError for more information 550 5.7.1 . m7si30734523wjg.231 - gsmtp (in reply to end of DATA command)
You can try to do what google suggests in that link. But I'm not sure if it will help for the copied mails. What you can try is to replace the mailbox with an email forward in ispconfig that sends the email to gmail and another mailbox.
