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Date:      Mon, 10 Aug 1998 08:53:58 -0700 (PDT)
From:      Dan Busarow <dan@dpcsys.com>
To:        Dan Langille <junkmale@xtra.co.nz>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: receiving mail directly
Message-ID:  <Pine.BSF.3.96.980810084001.1024B-100000@java.dpcsys.com>
In-Reply-To: <199808092015.IAA20066@cyclops.xtra.co.nz>

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On Mon, 10 Aug 1998, Dan Langille wrote:
> Well, permanent in the sense that I don't dial up with a modem.  Over 
> the past 6 months or so, it's been down about 3 or 4 times.  In such 
> circumstances, my ISP, as the secondary server, would store the mail.  
> Mail would be forwarded to my mail server by my ISP when the 
> connection returned.

If you're down, but still findable via DNS, the mail will be spooled
on the sender's system.  Unless the downtimes are for more than
3 or 4 days (sendmail has a default 5 day wait before bounce) that's
all you should need.  Off site secondaries are pretty much a relic
of the good old UUCP days.

> A curly one: My connection may be permanent.  But my IP is not.  It's 
> assigned via DHCP.  There must be some mechanism for my ISP to 
> update the DNS dynamically.

Better get that from him in writing if you are depending on receiving
mail.  What happens if they give you a new IP address and your old one
goes to someone else?  Best case is that the mail is refused, worst
is that it goes to a competitor and is accepted.

> > Installing procmail is a good idea, but not for this problem.  It
> > will give you more control over local delivery than you've yet dreamed
> > of. :)
> 
> OH.
> 
> You say that as if it's something I might regret if I tried it.   :)

Not at all.  You can hurt yourself using it but wielded properly it
can make your life a lot easier.  Just way overkill for refusing
email to certain addresses.

Dan
-- 
 Dan Busarow                                                  949 443 4172
 DPC Systems / Beach.Net                                    dan@dpcsys.com
 Dana Point, California  83 09 EF 59 E0 11 89 B4   8D 09 DB FD E1 DD 0C 82


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