On Tue, Apr 07, 2009 at 03:44:04PM +1000, Martin Barry wrote:
> We have an embedded device which is speaking malformed SMTP. We have filed a
> bug with the vendor
Suggestion: find another vendor. This is a not an implementation error or
oversight, this is basic incompetence from under-qualified developers.
Anything else developed by the same staff is highly likely to be wrong,
fragile, have security issues, ...
> but we would like to see if we can work around it in the
> meantime. Is there a way to ignore this or change it to a warning rather
> than a failure?
Though this application does not deserve such treatment, you are in luck,
but this uses undocumented behaviour of "smtpd_noop_commands". It could
stop working without notice in a future release.
> 220 smtp.example.com ESMTP Postfix...
> HELO embedded.example.com ...
> 250 smtp.example.com
> MAIL FROM:<no-re...@embedded.example.com>
> 250 2.1.0 Ok ...
> REPLY-TO:<>
> 221 2.7.0 Error: I can break rules, too. ...
main.cf:
# Not specifically intended to support table lookups, abuse of
# implementation artifact. If table lookup support is dropped,
# could try "reply-to:<>" or "reply-to:" (depends on how this
# non-command is tokenized) as a literal value.
#
smtpd_noop_commands = pcre:${config_directory}/noop.pcre
noop.pcre:
/^reply-to:/ NOOP
Example:
220 amnesiac.example.com ESMTP Postfix
ehlo foo
250-amnesiac.example.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from:<viktor>
250 2.1.0 Ok
reply-to:<>
250 2.0.0 Ok
rset
250 2.0.0 Ok
quit
221 2.0.0 Bye
--
Viktor.
Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the "Reply-To" header.
To unsubscribe from the postfix-users list, visit
http://www.postfix.org/lists.html or click the link below:
<mailto:majord...@postfix.org?body=unsubscribe%20postfix-users>
If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.
