Mailinglist Archive: opensuse (4053 mails)

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RE: [SLE] Acting as outgoing SMTP for customers with dynamic IPs without becoming an open relay
  • From: "Iain Gray" <lists@xxxxxxxxxxxxxxx>
  • Date: Fri, 10 Aug 2001 11:21:01 +0100
  • Message-id: <NEBBJNNLODBOIMEFFOFMMEDKDHAA.lists@xxxxxxxxxxxxxxx>
Hi, should do the job for you. It was
written with qmail in mind, but will work with pretty much any server
(apparently). If you want any more info on qmail, let me know or go to I've been running it for a while an am really happy with



> -----Original Message-----
> From: Jonathan Wilson [mailto:wilson@xxxxxxxxxxx]
> Sent: 09 August 2001 21:26
> To: suse-linux-e@xxxxxxxx
> Subject: [SLE] Acting as outgoing SMTP for customers with dynamic IPs
> without becoming an open relay
> Hello,
> We are finally faced with the following situation:
> We have some customers who need to be able to use our mail server
> as their outgoing SMTP server (running Postfix). They are on
> dynamic IPs, so we can't just add one or two IPs to the relay
> configuration ($mynetworks).
> To make matters even worse, they really should be able to use our
> mail server to send from their laptops when traveling, and of
> course there's no way to know before hand what net block they're
> going to be on while traveling around the world. We cannot just
> open up wide and become an open relay.
> So , hopefully other people on this list have run into similar
> situations. What is the best solution for this? What have the
> rest of y'all done?
> My boss said he'd hear of packages that authenticate you for
> relaying when you successfully check your pop3. Currently I'm
> running Solid-pop3d for virtual user/virtual domain support, so
> I'm not sure how that will work.
> Any advise is appreciated, especially the Voice of Experience:-)
> TIA!
> ----------------------------------------------------
> Jonathan Wilson
> System Administrator
> Cedar Creek Software
> Central Texas IT
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