[plug] Smallest MTA (Sendmail/SMTP) for Ubuntu

[Bernd Felsche]

Tim <weirdit at gmail.com> wrote:
>On Sun, May 3, 2009 at 6:40 PM, Bernd Felsche
><berfel at innovative.iinet.net.au> wrote:
>> Tim <weirdit at gmail.com> wrote:

>>>p.s. I'd love to just email over the VPN, but of course I don't want
>>>emails failing if the VPN dies for some random reason.
>>
>> Get postfix to store the emails until the VPN comes up (part of
>> the "up" script for each connection); to trickle out any that are
>> queued by only allowing one delivery daemon (maxproc in master.cf
>> after defining a delivery transport).

>The issue was more if the VPN went down for some reason, I'd have no
>emails coming from cron that might give me a hint as to the issue. It
>can be hard enough getting these machines to stay connected to the
>net, so one less thing that can go wrong between me and the cron
>emails is desirable.

>Saying that, anyone know an easy way to have postfix use a smarthost
>and if the smarthost fails then to deliver mail itself? (I.e. it's
>configured as an internet site with smarthost, but falls back to just
>plain internet site when the smarthost is down)?? Or is that wishing
>too much?

Not usre if postfix provides it directly is you specify multiple
"smarter hosts".

As openVPN notices the VPN going up and down, you could e.g. switch
between two transport tables (or two main.cf); one for VPN delivery
and one "another way". Use two files, change the symlink, do a
reload of postfix.
-- 
/"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia
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