Am 23.05.2012 19:35, schrieb Georg Schönweger: > Am 23.05.2012 19:08, schrieb Wietse Venema: >>> and another question regarding port 25; >>> when my postfix server generates a bounce message (which happens when >>> sending a mail to non existend address) and sends it back to the >>> originally envelope sender, he uses "From: [email protected]" >>> as sender of the bounce message. Does [email protected] has to >> >> It is your responsibility to ensure that Postfix sends such mail >> with the correct domain name. See >> http://www.postfix.org/BASIC_CONFIGURATION_README.html#myorigin >> >> Wietse >> > > What does "correct domain name" mean? Currently im using "myserver.tld" > as domain name which has an A-Record pointing to my server (and a > reverse dns record as well). Do i have to allow incoming mail on this > domain too? (atleast for MAILER-DAEMON@ and postmaster@)
you have simply to use your PUBLIC, official domain name if you send with "@myserver.tld" there has to be ANY mailserver accepting a) this domain and b) this specific sender address you must not send mails with a non-working sender domain becasue a) you violate RFCs and b) servers with sender-verification will never accept such messages
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