[fetchmail-devel] 6.3.12 regression: SMTP error code parser

[Thomas J. <tho...@in...>]

Hello,

I just upgraded from fetchmail 6.3.11 to 6.3.12 and noticed that
the softbounce option wasn't working as expected.

As a test, I sent a message to an unknown recipient in a multidrop domain.
The message should then be bounced to the sender once (set no softbounce).

Here's the output from fetchmail 6.3.12 with smtp.c from fetchmail 6.3.11:

fetchmail: passed through gib...@re... matching recipient.com
fetchmail: Trying to connect to 127.0.0.1/25...connected.
fetchmail: SMTP< 220 intratest2.net.lan ESMTP
fetchmail: SMTP> EHLO intratest2.net.lan
fetchmail: SMTP< 250-intratest2.net.lan
fetchmail: SMTP< 250-PIPELINING
fetchmail: SMTP< 250-SIZE 104857600
fetchmail: SMTP< 250-ETRN
fetchmail: SMTP< 250-STARTTLS
fetchmail: SMTP< 250-ENHANCEDSTATUSCODES
fetchmail: SMTP< 250-8BITMIME
fetchmail: SMTP< 250 DSN
fetchmail: forwarding to localhost
fetchmail: SMTP> MAIL FROM:<tho...@se...> BODY=7BIT SIZE=1756
fetchmail: SMTP< 250 2.1.0 Ok
fetchmail: SMTP> RCPT TO:<gib...@re...>
fetchmail: SMTP< 550 5.1.1 <gib...@re...>: Recipient address rejected: User unknown
fetchmail: SMTP error: 550 5.1.1 <gib...@re...>: Recipient address rejected: User unknown
fetchmail: SMTP listener doesn't like recipient address `gib...@re...'

-> Generates one bounce mail only

Output from a vanilla 6.3.12 installation:

fetchmail: passed through gib...@re... matching recipient.com
fetchmail: Trying to connect to 127.0.0.1/25...connected.
fetchmail: SMTP< 220 intratest2.net.lan ESMTP
fetchmail: SMTP> EHLO intratest2.net.lan
fetchmail: SMTP< 250-intratest2.net.lan
fetchmail: SMTP< 250-PIPELINING
fetchmail: SMTP< 250-SIZE 104857600
fetchmail: SMTP< 250-ETRN
fetchmail: SMTP< 250-STARTTLS
fetchmail: SMTP< 250-ENHANCEDSTATUSCODES
fetchmail: SMTP< 250-8BITMIME
fetchmail: SMTP< 250 DSN
fetchmail: forwarding to localhost
fetchmail: SMTP> MAIL FROM:<tho...@se...> BODY=7BIT SIZE=1757
fetchmail: SMTP< 250 2.1.0 Ok
fetchmail: SMTP> RCPT TO:<gib...@re...>
fetchmail: SMTP< 550 5.1.1 <gib...@re...>: Recipient address rejected: User unknown
fetchmail: SMTP> RSET
fetchmail: SMTP< 250 2.0.0 Ok
fetchmail:  not flushed
fetchmail: POP3> QUIT
fetchmail: POP3< +OK POP server signing off
fetchmail: SMTP> QUIT
fetchmail: SMTP< 221 2.0.0 Bye

-> Message stays on the server and will be refetched everytime fetchmail is called.

To me this looks like the new multiline smtp error code parser is broken?
The SMTP server in question is postfix 2.6.2.

Cheers,
Thomas