smtp vrfy

[Simon Jones]

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-
> bounces at lists.mailscanner.info] On Behalf Of Glenn Steen
> Sent: 06 November 2007 12:23
> To: MailScanner discussion
> Subject: Re: smtp vrfy
> 
> On 06/11/2007, Simon Jones <simon at saq.co.uk> wrote:
> > > -----Original Message-----
> > > From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-
> > > bounces at lists.mailscanner.info] On Behalf Of Glenn Steen
> > > Sent: 06 November 2007 10:02
> > > To: MailScanner discussion
> > > Subject: Re: smtp vrfy
> > >
> > > On 06/11/2007, Simon Jones <simon at saq.co.uk> wrote:
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: mailscanner-bounces at lists.mailscanner.info
> > > [mailto:mailscanner-
> > > > > bounces at lists.mailscanner.info] On Behalf Of Koopmann, Jan-
> Peter
> > > > > Sent: 06 November 2007 08:00
> > > > > To: MailScanner discussion
> > > > > Subject: RE: smtp vrfy
> > > > >
> > > > > > *breaks out the clue stick*
> > > > > >
> > > > > > Callouts are considered abusive by many servers-- you
> probably
> > > want
> > > > > to
> > > > > > be VERY
> > > > > > VERY CAREFUL about doing this...  Personally I don't run it
> at
> > > all,
> > > > > but
> > > > > > my spam
> > > > > > setup is such that I don't need to...
> > > > >
> > > > > Are they talking about sender address verification? The way I
> read
> > > it
> > > > > he
> > > > > is trying to do the opposite and ask his inbound receiving
> mailer
> > > > which
> > > > > would be a wise thing to do and has nothing to do with
> callouts.
> > > Might
> > > > > be wrong though... :-)
> > > > > --
> > > >
> > > > Hi, that's exactly what I'm trying to do - I run a server with a
> > > generic
> > > > public domain with lots of users on it - the domain has been
> around
> > > for
> > > > 12 years so attracts mucho canned meat of the spam variety.  All
> I
> > > want
> > > > mailscanner to do is say to the destination server "hey there,
do
> > you
> > > > have this address?" before actually sending the message, which
> would
> > > > take some pressure off the spooler on the destination server.
> > > >
> > > > I think it IS working but the gateway is starting the smtp vrfy
> > > > transaction with <postmaster> rather than
<postmaster at domain.com>
> -
> > > > here's the error off the destination machine: "unacceptable mail
> > > address
> > > > in MAIL FROM:<postmaster>"
> > > >
> > > > I'm running a seperate machine with postfix only and this does
> use a
> > > > postmaster at domain.com address for outside smtp transactions, but
> I
> > > can't
> > > > find the config to specify what address the postmaster should
use
> -
> > > only
> > > > that it is an alias of root in /etc/postfix/aliases
> > > >
> > > > Thanks again chaps, the answer is probably blatantly simple but
> I'm
> > > not
> > > > seeing it :(
> > > How about
> > > address_verify_sender = postmaster
> > > in main.cf ... or rather
> > > address_verify_sender = postmaster at yourdomain.com
> > > ...?
> > > Cheers
> > > --
> > > -- Glenn
> >
> > Cheers Glen,
> >
> > That sorted the address issue - still doesn't work though hehe,
> bounces
> > everything - valid or not but if I do a vrfy user at domain.com on the
> > destination server it validates or rejects as one would expect.  Now
> > checking my config to make sure nothing fishy is going on here...
> >
> > Simon
> Does it work on the "target" if you telnet from the "source"
> (gateway/MS-box) and do it by hand? If so, then definitely something
> wrong with the rest of the setup on the GW:-).
> Wietses doc is pretty lucid, so do try and follow that;-).
> 
> Cheers
> --
> -- Glenn

Yup, works fine if I telnet off the gateway to the target host - I'll
check the doc and see what I can turf up.