[olug] Mail Relaying w/Filtering

Brian Roberson roberson at olug.org
Thu Nov 28 06:28:47 UTC 2002 

jump on users.olug.org and poke around in /var/qmail and /etc/rc.d/qmail

;-)




----- Original Message ----- 
From: "Eric Penne" <epenne at yahoo.com>
To: <olug at olug.org>
Sent: Wednesday, November 27, 2002 10:33 AM
Subject: RE: [olug] Mail Relaying w/Filtering


> First a question to the list.  How do I setup qmail to deliver to the
> old fashioned /var/spool/mail/$USER or whatever the default of most
> distros is?
> 
> I did some google research on the relaying and thanks to the list, I
> found everything I needed.  After evaluating sendmail and qmail and my
> previously good experience with djbdns, I decided to go with qmail. 
> The test machine setup didn't work very well because of the internal
> network stucture without dns names.  After some tweeking of etc/hosts
> and reconfig of qmail for bms.local domain name it worked fairly well. 
> I could even send email to the outside world.  Talk about spammers
> heaven.  I then setup qmail on our external server.  after one small
> glitch with reverse lookup of domain name ftp2.intellefleet.com which
> resolved to the ISPs name instead, everything worked internally. 
> Setting up Maildir is kind of annoying since that isn't the default
> setup for distros.  Once I understood it and setup Mutt to read from
> Maildir, I thought it was easy to use and fairly intuitive.  This
> format may not work with the scripts that we want to write though so I
> mayhave to switch back.
> 
> I didn't install linux on the ftp2 machine because it is in California.
>  They installed a personal firewall on it that didn't allow port 25. 
> Like an idiot my first response was to flush the firewall rules. 
> iptables -F which then disconnected me and didn't allow me to log back
> in.  We had to email the peeps in california to reboot the machine. :) 
> This morning I did it right and configured shorewall to accept port 25
> and restarted the firewall.  Much better.
> 
> Anyway that is the scoop on this end.  Thanks for all your help and
> offers for help.  I'll be trying the compact flash stuff next week
> probably.
> 
> Eric
> 
> --- "Blaufuss, Shane" <sblaufuss at fnni.com> wrote:
> > Sorry for not getting back to this sooner.
> > 
> > From what you're stating below, and assuming that I read it
> > correctly, you
> > want mail to be delivered to a local user on that mailserver, and you
> > want
> > that local user to be able to send it out to the internet?  A default
> > installation of Sendmail 8.9 or higher will do that.  While I have to
> > agree
> > that the other MTAs mentioned in this thread are more easy to
> > configure, if
> > you're not going to be messing with it all the time or setting up
> > complex
> > relaying features (i.e. for hosting POP or IMAP mail for remote
> > users) then
> > Sendmail should be on equal footing as Qmail and whatnot.
> > 
> > If you decide to use Sendmail, both Google Groups and I are at your
> > disposal
> > :)
> > 
> > > -----Original Message-----
> > > From: Eric Penne [mailto:epenne at yahoo.com]
> > > Sent: Friday, November 22, 2002 4:19 PM
> > > To: olug at olug.org
> > > Subject: Re: [olug] Mail Relaying w/Filtering
> > > 
> > > 
> > > I have more info on what I need to do with the email server.  Using
> > an
> > > authorization is not allowed (this time) because of changes that
> > would
> > > need to take place in the base station code and then 
> > > distributing these
> > > changes.
> > > 
> > > This is pretty much a yes or no question also wanting a few
> > keywords
> > > that I would need to look for on Google.
> > > 
> > > I want to configure a mail server that will allow incoming mail to
> > be
> > > distributed to the local users.  One of the local users
> > automatically
> > > runs scripts to parse the information on the incoming emails 
> > > and format
> > > it.  This user then automatically emails it back out to the outside
> > > world.  Is it possible to allow mail connections to "local users
> > only"
> > > from the "anybody" in the outside world?  Is it also possible to
> > allow
> > > "local users" to then email anybody in the outside world?  Is 
> > > there any
> > > mail servers that would do this better than others? What keywords
> > > should I look for in the configuration files?
> > > 
> > > I don't need a detailed explanation, unless your feeling generous.
> > > 
> > > Thanks
> > > Eric
> > > 
> > > PS I'm checking out the sendmail FAQ right now but figured I lob
> > this
> > > question out to the list at the same time.  I'm not 
> > > completely lazy. :)
> > > 
> > > 
> > > 
> > > 
> > > --- Phil Brutsche <phil at brutsche.us> wrote:
> > > > A long time ago, in a galaxy far, far way, someone said...
> > > > 
> > > > > We have base stations out in the field that collect data from
> > our
> > > > > system.  These base stations (linux based 386) have ethernet,
> > > > serial,
> > > > > and modem connections.  The serial reads data from 
> > > another module. 
> > > > The
> > > > > ethernet and modem are used for communications with us.  The
> > modem
> > > > can
> > > > > dial into our service provider and email the data it has.  The
> > > > service
> > > > > provider won't let us do the same thing through ethernet 
> > > because it
> > > > > does not orginate from inside thier system (ie not from 
> > > their modem
> > > > > pool).  We wnat to set up a mail relay system that we can use
> > for
> > > > all
> > > > > email communication (modem and ethernet).  Of course we don't
> > want
> > > > it
> > > > > to be open to the rest of the world.  Here is my question:  Can
> > we
> > > > set
> > > > > up a relay that can filter the mail so that it must conform to
> > a
> > > > > specific format or have a specific identifier in it?
> > > > 
> > > > Two words: SMTP AUTH
> > > > 
> > > > -- 
> > > > 
> > > > Phil Brutsche
> > > > phil at brutsche.us
> > > > 
> > > > _______________________________________________
> > > > OLUG mailing list
> > > > OLUG at olug.org
> > > > http://lists.olug.org/mailman/listinfo/olug
> > > 
> > > 
> > > __________________________________________________
> > > Do you Yahoo!?
> > > Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> > > http://mailplus.yahoo.com
> > > _______________________________________________
> > > OLUG mailing list
> > > OLUG at olug.org
> > > http://lists.olug.org/mailman/listinfo/olug
> > > 
> > 
> > _______________________________________________
> > OLUG mailing list
> > OLUG at olug.org
> > http://lists.olug.org/mailman/listinfo/olug
> 
> 
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> http://mailplus.yahoo.com
> _______________________________________________
> OLUG mailing list
> OLUG at olug.org
> http://lists.olug.org/mailman/listinfo/olug
>

More information about the OLUG mailing list