Re: [Exim] mailbox lock

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Autor: Nigel Metheringham
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A: exim-users
Assumpte: Re: [Exim] mailbox lock
On Sun, 2003-10-12 at 21:13, Tom Lazar wrote:
> On 12.10.2003, at 10:42, Asbjorn Hoiland Aarrestad wrote:
>
> >> Get rid of it and install cyrus or courier imap.
> >
> > which one is best? fastest and smallest use of memory?


I've used both at various times, but not benchmarked them against each
other. I currently use courier.
courier is pretty good on memory use. Speed will generally be limited
by the disk, cyrus has an advantage in its more database approach to
things which should allow it to be much better with large mailboxes (not
verified this is the case).

> i can recommend cyrus. but only if you're willing to accept a steep
> learning curve. after that it's smooth sailing - i've never looked
> back! the tricky bit (for me) has always been getting authentication
> working (i uses sasldb)
>
> other than performance and stability there are other key benefits:
>
> a) only on system user (cyrus) needed: all mailusers exist only within
> cyrus, so even a system with many, many users will still be manageable.
> this also makes for easy backups: the entire /var/spool/imap folder is
> owned by cyrus. so getting a backup working at a new (replacement)
> machine doesn't mean adding all those users to the system again.


You can run courier like this. Or with real users and a uid each. Or a
combination.

> b) sieve! i don't know what to do without it, anymore. server-side
> filtering of messages is a godsend ;-)


maildrop is quite good.
Add sqwebmail as well and you have a system that does imap, webmail and
has user editable (web form) delivery filters too.

    Nigel.


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[ Nigel Metheringham           Nigel.Metheringham@??? ]
[ - Comments in this message are my own and not ITO opinion/policy - ]