I use postfix mailserver but mails to @yahoo.com addresses are not sent. The mails are rejected with this message: (XX is my IP adress)
" host mta7.am0.yahoodns.net[126.96.36.199] said: 421 4.7.1 [TS03] All messages from XX.XX.XX.XX will be permanently deferred; Retrying will NOT succeed. See http://postmaster.yahoo.com/421-ts03.html (in reply to MAIL FROM command) "
How to solve this error?
Anyone an idea about what is going on and how to solve this?
Searching for the error already gave me a few suggestions, like that I have an open relay, so I edited my postfix main.cf, to cntain a few lines with restrictions like suggested on this forum: http://ubuntuforums.org/archive/index.php/t-2060287.html , but still the same problem.
Was this indeed my problem and do I need to give it more time, or should I fix something else?
Thanks a lot like always!