On 2005-01-17 00:11:57 -0600, David Nicol wrote: > the example given in the bad rcpt to line syntax error on postfix has > a space in it, as seen recently telnetting to a postfix server. > > I think rejecting based on stray spaces is being too strict.
I am forced to agree with you. At least on sites where you have more
than a handfull of users.
I started rejecting connections with the erroneous space 8 days ago on
our main MX - so far we rejected about 80000 mails and had 2 complaints
that a mail didn't get through. While a false positive rate of 0.0025%
doesn't sound too bad, 2 complaints per week is still too much for my
peace of mind.
Right now I have only whitelisted the two MTA's involved (one is an
Aladdin eSafe, the other I couldn't find out, because it has a Pix in
front of it) and the postmaster addresses and still reject by default. I
may change that in a few weeks (maybe combine that with some other
indications of spam).
> > On second thought, I'm not so sure about that any more. Parsing SMTP
> > commands is the job of Qpsmtpd::SMTP, not the job of plugins.
> >
> > Making the original line available to the plugin is still a good idea,
> > though.
> >
> > > > I think this is a qmail compatibilty feature. Qmail-smtpd accepts
> > > > space after the colon.
>
> qmail is also happy without angle brackets. And with no colon.
And without to or from.
> I would much rather telnet to a qmail server to do raw smtp than a
> pickier server,
Yeah, but the spammers like the non-picky servers a lot more, too :-)
"Be liberal in what you accept and conservative in what you send" was a
good motto for a friendlier internet than we have today.
hp
--
_ | Peter J. Holzer | Je höher der Norden, desto weniger wird
|_|_) | Sysadmin WSR | überhaupt gesprochen, also auch kein Dialekt.
| | | [EMAIL PROTECTED] | Hallig Gröde ist fast gänzlich dialektfrei.
__/ | http://www.hjp.at/ | -- Hannes Petersen in desd
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