On Fri, Jun 29, 2001 at 05:08:13PM +0800, Franki wrote:
> you should check out if that is available in webmin, I know it is for
> Sendmail, so I wounldn't be surprised if it was for Postfix as well.
Sorry, just to be clear: I take it you're referring to the ease with
which you can admin the MDA from Webmin? Thanks - I was going to use
Webmin anyway, but I would still like to keep the number of steps to
set up a new user down to a minimum.
I should have been more clear in my last posting: my main question
was:
If we're delivering our mail as coming from ourcharity.org.uk and it's
being relayed through BT's (our new ISP) SMTP server, wouldn't it get
blocked at some point by spam filters (e.g. on mailing lists, people's
home machines)? Or have I misunderstood something?
Thanks,
Tom
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Tom Strickland
> Sent: Friday, 29 June 2001 5:51 PM
> To: expert-mandrake
> Subject: Re: [expert] hostname questions (again)
>
>
> On Fri, Jun 29, 2001 at 09:17:00AM +0200, Andreas Grytz wrote:
> > Hi Tom,
> >
> > Postfix con rewrite the sender field of all outgoing mail, but it's
> > much work, if you have many users to administrate.
> > add
> > sender_canonical_maps = hash:/etc/postfix/sender_canonical
> >
> > to your postfix main.cf
> > touch /etc/postfix/sender_canonical
> > (vi|emacs) $_
> >
> > The format is like this
> >
> > [EMAIL PROTECTED] [EMAIL PROTECTED]
> >
> > do
> > /usr/sbinpostmap /etc/postfix/sender_canonical
> > /usr/sbin/postfix reload
>
>
> Hmmm - sounds great for my home machine, but not so great for the
> charity. The idea is to set up a minimum administration system so that
> an administrator is only needed to check the logs periodically and
> patch the system. Backup, user admin, mail - nearly everything else
> needs to be admin'd by the secretary. This is one area where Win NT
> still manages to do a little better, but I'm not letting that back on
> our server.
> If we're delivering our mail as coming from ourcharity.org.uk and it's
> being relayed through our ISP's SMTP server (BT), wouldn't it get
> blocked at some point by spam filters?
>
> Thanks,
>
> Tom
>
> > On Thu, Jun 28, 2001 at 05:07:07PM +0000, Tom Strickland wrote:
> > > On Thu, Jun 28, 2001 at 07:33:38AM -0700, Rusty Carruth wrote:
> > > > Tom Strickland <[EMAIL PROTECTED]> wrote:
> > > > > Our server is about to be connected to the Internet through a dialup
> > > > > modem. Naive question:
> > > > > Is it OK to give our network/server any old domain name? To the
> > > > > outside world we will be the domain set by our ISP, but can I set
> the
> > > > > domain in our LAN to something like smith.jones?
> > > >
> > > > It may work, it may not.
> > > >
> > > > A lot depends upon how you set up your mail.
> > >
> > > Thanks.
> > > That's what I thought. Running postfix as SMTP, fetchmail to hit POP
> > > boxes at the ISP.
> > >
> > > > If you try to send mail to your ISP from [EMAIL PROTECTED], and your
> > > > isp is jones.smith, then your isp will most likely deny you the
> > > > relay that it thinks you are asking for when you try to send email
> > > > to anyone outside the jones.smith (and possibly smith.jones)
> domain(s).
> > > >
> > > > If, however, you send email directly from your smith.jones side then
> > > > you might (should?) be ok. (But beware - strange things may happen on
> > > > INCOMING email ;-)
> > >
> > > We'll be using a domain along the lines of ourcharity.org.uk anyway
> > > (got to buy the domain), with mail forwarding, so we'll have to get
> > > around similar problems. We'll have mail to:
> > > our ISP's accounts
> > > our purchased domain
> > > the local hostname - deliberately totally different from the other 2
> > > domains.
> > > ... all of which must be dealt with by Postfix. I assume that it can
> > > cope. I'm also worried about zealous spam filters on mailing lists
> > > detecting an untraceable mailer - that shouldn't be a problem should
> > > it?
> > >
> > > > I had a setup like that for a while - I was descomp.phx.inficad.com
> > > > AND descomp.com for a long time, and it worked fine as long as I
> > > > sent email directly out from my descomp.com domain (i.e. I ran
> > > > postfix on descomp.com and IT was a 'smart mailer' (in the old
> > > > sendmail terminology :-) So it can work fine. It helps if you
> > > > set your mailer to accept mail for BOTH domains.....
