Hello everybody, postfix user since neraly two years approximately (runs like a swiss cloickwork, THANKS to developers) but now I have a question I could not resolve via reading the documentation:
My question is not about Postfix configuration but only on how to read Postfix' loglines. I have a mail user with obviously a mixed up MUA setup (Thunderbird). This mail user cannot send out Email to any Email address belonging to foreign mail servers. He only succeeds to send Email to users on the same mailserver (mine). The principal problem (wrong MUA settings) is clear but I just would like to fully understand the related postfix logline 100% right (to be able to give more DETAILED advice to this MUA user. My Email user is [email protected] (my mailservers) He wants to send an Email to [email protected] (foreign mail server) Here's the logline in question: Oct 24 22:38:36 mail postfix/smtpd[91510]: NOQUEUE: reject: RCPT from ANice-123-1-16-136.w82-144.abo.wanadoo.fr[123.123.123.123]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[192.168.0.4]> So three times an Email address is mentioned in this logline. The meaning of the second occuremce ("... from=<[email protected]> ...") and third occurence (".... to=<[email protected]> ...")is clear. I just don't get the exact meaning of the first occurence of an Email address. Now the actual question: Does the FIRST occurence of an Email address ( "... 554 5.7.1 <[email protected]>: Relay access denied ...") mean, that my client tried to smtp auth himself as mailbox user [email protected] ? Does this then mean that wrongfully this MUA setup has [email protected] in the mail accounts configuration instead of [email protected] ? In this case, I had an approval on the wromg MUA setup. My postfix configuration does exactly what it has to do: reject foreign users to avoid being an open relay. Many thanks in advance ! Tom
