Re: replacing MTA
>>>>> "nathan" == Nathan E Norman <email@example.com> writes:
nathan> In other words, simply using 'dpkg -i' or 'dpkg -r' is
nathan> problematic, since the MTA is essential.
here is a simple (and *dirty*) method, but it sort of works for
light-duty machines: example on how i approximately did a few
switchings from smail to exim, once-upon-a-time:
1) to make sure that no mails are in the queue anymore:
2) disallow smtp connection:
<plug out the cable :>
3) force remove the old MTA:
$ dpkg --purge --force-depends smail
4) install the new one:
$ dpkg --install exim_*.deb
5) allow smtp connections
<plug in the cable :>
6) tune some software if needed (listmanagers, etc).
...and there you have it. beware, it's quite a *dirty* method! :-))
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