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Date:      Mon, 24 Feb 2003 15:12:30 +0100
From:      Peter Hollaubek <fifteen@inext.hu>
To:        FreeBSD-questions@FreeBSD.ORG
Subject:   Re: Mutt, Postfix and port 512
Message-ID:  <20030224141230.GA79604@fif.office.inext.hu>
In-Reply-To: <20030224071729.GA248@tina.la3sg.net>
References:  <20030224071729.GA248@tina.la3sg.net>

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[-- Attachment #1 --]
On Feb 24, 2003, Kjell Midtseter wrote:
> List members!
> On my LAN I have a FreeBSD R4.7p4 workstation where I fetch 
> my mail for this list from my ISP using fetchmail, and reading
> it with mutt.
> After I switched from using sendmail to postfix I started getting messages on ttyv0 like:
> Feb 23 07:26:33 tina /kernel: Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:1054
> each time a mail is arrives. 
> A second or three after the above message is shown, the mail pops up in mutt.
> 
> What causes the message, and how do I eliminate it?
> 
> Regards from Kjell
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-questions" in the body of the message

/etc/services:

biff            512/udp    comsat       #used by mail system to notify users

man comsat:
     Comsat is the server process which receives reports of incoming mail and
     notifies users if they have requested this service.  Comsat receives mes-
     sages on a datagram port associated with the ``biff'' service specifica-
     tion (see services(5) and inetd(8)).

This service is off by default, thus if log_in_vain is turned on, you will have 
a similar message after every mail. Sendmail/mail.local has the very same 
behavior unless you specify the -B flag to mail.local. 

fif

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