Am 23.05.2012 19:40, schrieb Reindl Harald: > > > 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 >
so sender-verification will not only check if the domain is "valid" (A-Record), but also if the server accepts mails for the specific sender address (e.g. [email protected])? If i change now to our public domain name (hosted by a company) do i have to create a MAILER-DAEMON account? kind regards, Georg
