>Good afternoon, I'm reading the documentation but can't find something about
>having a secondary mail server for POP3 access... I see that I can have a
>backup server that will catch emails while the primary comes back online,
>but users will see that the pop3 is missing... I would like to avoid that,
>is it possible with Imail?
No, that isn't possible (with IMail or any other mail server), without huge
amounts of work.
There are several problems. First of all, mail clients are set up to
accept mail from only 1 domain name (IE "mail.example.com"). Secondly,
even if all your users had two accounts set up, synchronization would be a
nightmare (which server has which messages, if they keep their E-mail on
the server).
To bypass these two problems, you could use DNS trickery to have
mail.example.com point to two different IP addresses (maybe, with a super
advanced or custom DNS server, you could have it point to the primary mail
server unless it was down). But, how would the backup mail server know
what E-mails were already stored on the primary mail server?
In order to accomplish this "holy grail", you would need to delve into
things like clustering, which isn't going to be an easy task. Rumor has it
that a few people have figured out a way to do this, but I haven't heard
any details (so if anyone knows how to do it, please share).
-Scott
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