Hi,

is it possible to deliver incoming emails for a single domain on a
fallback MX to a local pop3-box, if the primary MX is down? A user of mine
would like to be able to pop his emails even if his primary MX is down. My
solution is to add my MX with a lower priority to the zone file and
deliver all incoming emails for that domain at the fallback MX to a single
pop3 box and just tell the user to check the pop box at the fallback
every 10 minutes as well. Any other ideas are welcome :-)

Thanks,
Marcus

Marcus Sobchak <lists@localguru.de> writes:
> is it possible to deliver incoming emails for a single domain on a
> fallback MX to a local pop3-box, if the primary MX is down? A user of mine
> would like to be able to pop his emails even if his primary MX is down. My
> solution is to add my MX with a lower priority to the zone file and
> deliver all incoming emails for that domain at the fallback MX to a single
> pop3 box and just tell the user to check the pop box at the fallback
> every 10 minutes as well. Any other ideas are welcome :-)

I would be trivial with "wide" patch not included into sendmail.org
distribution. It allows to select *another* mailers as delivery
fall-back. [AFAIK debian distributes additional sendmail variant with the
patch applied].

With unpatched sendmail.org version of sendmail you can try routing
based on number of delivery attempts and keeping the messages to the
domain in separate queue group to allow more frequent retries.

--
[pl>en: Andrew] Andrzej Adam Filip : anfi@priv.onet.pl : anfi@xl.wp.pl
Before You Ask: http://anfi.homeunix.net/sendmail/B4UAsk-Sendmail.html
http://anfi.homeunix.net/sendmail/ [orkut,linkedin,xing]

Hi Andrzej,

Am Tue, 30 Jan 2007 10:17:52 +0100 schrieb Andrzej Adam Filip:

> Marcus Sobchak <lists@localguru.de> writes:
>> is it possible to deliver incoming emails for a single domain on a
>> fallback MX to a local pop3-box, if the primary MX is down? A user of mine
>> would like to be able to pop his emails even if his primary MX is down. My
>> solution is to add my MX with a lower priority to the zone file and
>> deliver all incoming emails for that domain at the fallback MX to a single
>> pop3 box and just tell the user to check the pop box at the fallback
>> every 10 minutes as well. Any other ideas are welcome :-)
>
> I would be trivial with "wide" patch not included into sendmail.org
> distribution. It allows to select *another* mailers as delivery
> fall-back. [AFAIK debian distributes additional sendmail variant with the
> patch applied].

It seems that Debian/sarge does not contain the package sendmail-wide
anymore.


> With unpatched sendmail.org version of sendmail you can try routing
> based on number of delivery attempts and keeping the messages to the
> domain in separate queue group to allow more frequent retries.

Very interesting! Do you have some Links for me? That would be great.

Thanks,
Marcus

Marcus Sobchak <lists@localguru.de> writes:

> Hi Andrzej,
>
> Am Tue, 30 Jan 2007 10:17:52 +0100 schrieb Andrzej Adam Filip:
>
>> Marcus Sobchak <lists@localguru.de> writes:
>>> is it possible to deliver incoming emails for a single domain on a
>>> fallback MX to a local pop3-box, if the primary MX is down? A user of mine
>>> would like to be able to pop his emails even if his primary MX is down. My
>>> solution is to add my MX with a lower priority to the zone file and
>>> deliver all incoming emails for that domain at the fallback MX to a single
>>> pop3 box and just tell the user to check the pop box at the fallback
>>> every 10 minutes as well. Any other ideas are welcome :-)
>>
>> I would be trivial with "wide" patch not included into sendmail.org
>> distribution. It allows to select *another* mailers as delivery
>> fall-back. [AFAIK debian distributes additional sendmail variant with the
>> patch applied].
>
> It seems that Debian/sarge does not contain the package sendmail-wide
> anymore.

It is listed only in oldstable version of Debian.

>> With unpatched sendmail.org version of sendmail you can try routing
>> based on number of delivery attempts and keeping the messages to the
>> domain in separate queue group to allow more frequent retries.
>
> Very interesting! Do you have some Links for me? That would be great.

1) Example of routing based on number of retries and message size

http://groups.google.com/group/comp....323e8722410873
news:392FE09B.76431FBA@bigfoot.com
From: Andrzej Filip <a...@bigfoot.com>
Subject: RFF: Smarter Host
Date: 2000-05-27
Newsgroups: comp.mail.sendmail,comp.mail.uucp

2) selecting custom rule set via mailertable

http://anfi.homeunix.net/sendmail/mrs.html
Mailertable Rule Sets (sendmail)


--
[pl>en: Andrew] Andrzej Adam Filip : anfi@priv.onet.pl : anfi@xl.wp.pl
Before You Ask: http://anfi.homeunix.net/sendmail/B4UAsk-Sendmail.html
http://anfi.homeunix.net/sendmail/ [orkut,linkedin,xing]