* Pls ignore this figured it out. It was disabled. Thanks
telnet localhost 25 > Trying 127.0.0.1... > Connected to localhost.localdomain (127.0.0.1). > Escape character is '^]'. > 220 AAAAAAA-AAD.AAAAAAAAAAAA.com ESMTP Postfix > ehlo localhost > 250-AAAAAAA-AAD.AAAAAAAAAAAA.com > 250-PIPELINING > 250-SIZE 31457280 > 250-VRFY > 250-ETRN > 250-STARTTLS > 250-AUTH LOGIN PLAIN > 250-AUTH=LOGIN PLAIN > 250-ENHANCEDSTATUSCODES > 250 8BITMIME > quit > 221 2.0.0 Bye > > Server does not show DSN capabilities i.e 250-DSN how to enable that ? > > * postconf output > ------snip--------- > smtp_discard_ehlo_keyword_address_maps = > smtp_discard_ehlo_keywords = > ------snip------------- > > * The smtp server-client response. > * On the server on which DSN does not work > --------------------------------------------------------------------------- > 0[b2b140]: SMTP Send: MAIL FROM:<a...@aaaaaaaa.com> SIZE=390 > > 0[b2b140]: SMTP entering state: 0 > 0[b2b140]: SMTP Response: 250 2.1.0 Ok > 0[b2b140]: SMTP entering state: 5 > 0[b2b140]: SMTP Send: RCPT TO:<aaaaaaaaa...@gmail.com> > --------------------------------------------------------------------------- > > * On another server where it works > --------------------------------------------------------------------------- > 0[a2b140]: SMTP Send: MAIL FROM:<aaaaa...@aaaaaaa.com> RET=FULL ENVID=< > 4f02a9cd.4060...@directi.com> SIZE=391 > > 0[a2b140]: SMTP entering state: 0 > 0[a2b140]: SMTP Response: 250 2.1.0 Ok > 0[a2b140]: SMTP entering state: 5 > 0[a2b140]: SMTP Send: RCPT TO:<aaaaaa...@gmail.com> > NOTIFY=SUCCESS,FAILURE,DELAY ORCPT=rfc822;mailhostingser...@gmail.com > --------------------------------------------------------------------------- > > TIA, > > > On Fri, Dec 30, 2011 at 8:50 PM, Wietse Venema <wie...@porcupine.org>wrote: > >> pritam raote: >> > Hello, >> > >> > * DSN(sender delivery status notification) does not work on my box >> running >> > postfix. >> > * the version of postfix on the non working box is postfix-2.8.7-1 >> >> DSN works only if: >> >> 1 - The POSTFIX SMTP server sends the DSN announcement to the REMOTE >> SMTP client. >> >> 2 - The REMOTE SMTP client (Thunderbird) requests DSN support. >> >> To find out if (1) and (2) happen, you need to report the SMTP >> commands and replies between the POSTFIX SMTP server and the REMOTE >> SMTP client (Thunderbird). You can anonymize the email address. >> >> http://www.postfix.org/DEBUG_README.html#mail >> >> Wietse >> > > > > > > > > > >