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Article #115Re: Warning: Connecting Linux Redhat 5.2 to ISP that supports SMTP
From: Andre van Dijk
Date: Wed, 10 Feb 1999 00:00
Date: Wed, 10 Feb 1999 00:00
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3334 bytes
On Wed, 10 Feb 1999 12:56:08 GMT, Sutrice wrote: >In article <D2NhbGAeetv2wBSt@turnpike.com>, > Neil Durant <ndurant@turnpike.com> wrote: >> In article <79f60f$c6$1@nnrp1.dejanews.com>, mab@helion.demon.co.uk >> writes >.. >> >The RedHat 5.2 installation (and others), by default, runs sendmail at >> >startup. This will cause you a problem if you haven't set up users on Linux >> >that correspond to the e-mail addresses at which people send you e-mail - as >> >soon as you connect, sendmail swings into action and receives all waiting >> >mail via SMTP but it will bounce all mail for users it doesn't know about >> >which is probably all of them (unless your e-mail address is >> >root@yourdomain.com!). >.. >> >> You should be able to cure this by adding entries in /etc/aliases to >> redirect mail to actual users. It's also worth having entries for >> addresses such as postmaster etc, which you might want to redirect to >> root. Once you've edited /etc/aliases you have to run a script to >> activate those changes. >.. > >This is a known configuration "gotcha" for users of ISPs like Demon (and it >_is_ annoying!) I believe the sendmail.cf from this site gives a tidier way >to solve the problem. All mail to unrecognised users are relayed to >postmaster. > >You simply have to define LUSER_RELAY to be local:postmaster. > >http://www.cabaret.demon.co.uk/mail.html#3 > >Once you have your recognised users set up, it's probably wise these days to >turn off this behavior. > >http://www.cabaret.demon.co.uk/mail.html#3 Maybe it's a good idea to put a couple of common sendmail and possibly others MTA config files on a web page, it don't really care who's website. I'm gonna put my sendmail config file (with Anti Spam stuff, see other thread) on my site. There are a couple of others who also have config files on their site eg. ww.hopf.demon.co.uk. But i figure it would be nice to have a collection of config files which are commonnly used on a central site. So when new/other user's ask about setting up mail for use with demon we can just point them to that central site. If there already is such a site i'd like to know. Cheers. -- A. van Dijk Linux: Let's crash some windows mailto: a.vandijk@unseen.demon.nl icq : 4249631
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fcd6c,4b3a35f705e92ae7 X-Google-Attributes: gidfcd6c,public X-Google-Thread: 10669a,3f984e2b5f422acb X-Google-Attributes: gid10669a,public X-Google-Thread: 108f6a,4b3a35f705e92ae7 X-Google-Attributes: gid108f6a,public X-Google-Thread: fa777,4b3a35f705e92ae7 X-Google-Attributes: gidfa777,public From: methanic@netscape.net (Andre van Dijk) Subject: Re: Warning: Connecting Linux Redhat 5.2 to ISP that supports SMTP Date: 1999/02/10 Message-ID: <slrn7c3o9g.su.methanic@unseen.demon.nl> X-Deja-AN: 442939657 X-NNTP-Posting-Host: unseen.demon.nl:195.173.224.199 References: <79f60f$c6$1@nnrp1.dejanews.com> <D2NhbGAeetv2wBSt@turnpike.com> <79rvl5$ck2$1@nnrp1.dejanews.com> X-Complaints-To: abuse@demon.net X-Trace: news.demon.nl 918678579 muttley:19658 NO-IDENT unseen.demon.nl:195.173.224.199 Reply-To: andre@unseen.demon.nl Newsgroups: linux.redhat.install,demon.ip.support.unix,redhat.networking.general,comp.os.linux.networking