Kenneth Kalmer:
> Hi all
>
> Just got asked by one our sales guys if we could implement a Postfix
> business continuity service, by his definition it means that Postfix acts as
> a normal backup MX but gives the users access to their email via webmail of
> sorts.
>
> I understand the issues of user authentication, validating users, etc.
>
> I'd just like to find out if anyone has implemented something similar, or
> have any pointers for implementing something like this.
I don't know of any, but this is how I would do it.
Business continuity requires that users keep access to old email.
This requires continuous replication. In the absence of file
systems with built-in replication, the best option is to implement
replication at the message store level.
>From the Postfix point of view this requires a replicated DBMS with
standard (LMTP or pipe-to-command) mail injection interfaces. For
web or IMAP access, another set of adapters would be needed.
Of course this also requires that the customer's systems are replication
enabled, and that your message store DBMSes can communicate with theirs.
Wietse
