* Sad Clouds via Postfix-users <[email protected]>: > I'm trying to disable MUA submission on port 25. I set these in my > config: > > main.cf: > smtpd_sasl_auth_enable = no > > master.cf: > smtp inet n - n - 1 postscreen > smtpd pass - - n - - smtpd > dnsblog unix - - n - 0 dnsblog > tlsproxy unix - - n - 0 tlsproxy > > However for some reason MUAs can still authenticate and submit mail when > connecting on port 25, even though SASL authentication is disabled > globally for smtpd. Am I missing something here?
What does a telnet to your server on port 25 and an EHLO ... show? Does your server announce AUTH in the list of ESMTP capabilities? This is what I seen when I use swaks instead of telnet: $ swaks -s mail.sys4.de -quit-after=AUTH === Trying mail.sys4.de:25... === Connected to mail.sys4.de. <- 220 mail.sys4.de ESMTP Postfix -> EHLO mx.state-of-mind.de <- 250-mail.sys4.de <- 250-SIZE 40960000 <- 250-ETRN <- 250-STARTTLS <- 250-ENHANCEDSTATUSCODES <- 250-8BITMIME <- 250-DSN <- 250 SMTPUTF8 -> QUIT <- 221 2.0.0 Bye === Connection closed with remote host. There's no AUTH. Your server also should not show AUTH. p@rick -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Schleißheimer Straße 26/MG,80333 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
