David Sharpe wrote: > Hi,
>
> The organisation are work for are in the process of switching to a new
> mail platform. Currently we are researching the following applications :
>
> Exim, Spamassassin, Clamav
>
> Our hope is to run the mail platform both under Windows (through Cygwin)
> and in the future under Linux. Therefore it is important that we get as
> much similiarty as possible to save time for when we do make the switch
> to a Linux mail server.
>
> My question is this. Using the software noted above will it be possible
> to filter spam differently for each user (local user preferences), while
> also preserving all spam in a "Spam" folder within each users Maildir.
> This Spam folder should be available to our users who connect via IMAP.
> Users who prefer to remain connecting through POP should be able to
> receive all their Spam email only with a rewritten subject.
> To summarise we will require 3 profiles of user:
>
> (1) Spam is filtered to a seperate folder which the user can see via imap
> (2) Spam is totally unfiltered
> (3) Spam has rewrite_subject but is otherwise delivered normally
>
> I appreciate any response and would be interested in finding a contact
> for sporadic advice as this project progresses.
>
All these options are possible with exim (and a good pop/imap server
like dovecot). However, I don't see the need for cygwin, you will get
better performance and less problems installing linux or BSD on the same
machine.