SV: SV: Port 25

[Anders Andersson, IT]

> -----Ursprungligt meddelande-----
> Från: mikea [mailto:mikea at MIKEA.ATH.CX] 
> Skickat: den 25 juni 2003 16:13
> Till: MAILSCANNER at JISCMAIL.AC.UK
> Ämne: Re: SV: Port 25
> 
> 
> On Wed, Jun 25, 2003 at 04:07:15PM +0200, Anders Andersson, IT wrote:
> > > -----Ursprungligt meddelande-----
> > > Från: mikea [mailto:mikea at MIKEA.ATH.CX]
> > > Skickat: den 25 juni 2003 15:41
> > > Till: MAILSCANNER at JISCMAIL.AC.UK
> > > Ämne: Re: Port 25
> 
> > > Try doing `telnet <name-of-machine> 25`. If something answers
> > > and puts up a banner, then there's a listener on 25, which 
> > > probably is your MTA. The banner will tell you what's there.
> > > 
> > > Mine gives this:
> > > 
> > >     $ telnet 127.0.0.1 25
> > >     220- ESMTP
> > >     220-
> > >     220-
> > >     220-It is a violation of applicable law to send spam
> > >     220-to this server, and such violations may be prosecuted.
> > >     220-
> > >     220 Be aware: Oklahoma has Long Arm clauses in its
> > > computer crime statute.
> 
> > What did you add to get that message or maybe its not sendmail?
> 
> Here's the relevant stuff from my /etc/mail/sendmail.cf: 
> 
> : # SMTP initial login message (old $e macro)
> : #O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
> : #       turns out to be
> : #       220 mikea.ath.cx ESMTP Sendmail 8.12.3/8.12.3; Sun, 
> 11 May 2003 15:24:54 -0500 (CDT)
> : O SmtpGreetingMessage=\n\n\nIt is a violation of applicable 
> law to send spam\nto this server, and such violations may be 
> prosecuted.\n\nBe aware: Oklahoma has Long Arm clauses in its 
> computer crime statute.

Thanks a lot
I will have to make a test on that after I figured out how to get TLS to
work :)

/Anders

> 
> Turns out that sendmail changes "\n" to CRLF in its banner. 
> 
> _Very_ handy. 
> 
> -- 
> Mike Andrews
> mikea at mikea.ath.cx
> Tired old sysadmin since 1964
>