[Dovecot] performance problems with IMAPS

[Stan Hoeppner]

On 5/10/2011 4:58 PM, Linda Walsh wrote:

> As you may be aware, TB3.x ignores the entire
> premise of
> IMAP in storing messages on the server, trying to make copies of all
> messages, locally.

Yes, this is the default as 95%+ of Thunderbird seats are home/mobile 
broadband users.  For corporate use see:

http://wpkg.org/Thunderbird#Prefs

> With my users running with roaming profiles, this easily adds over 1GB
> of locally cached
> mail to each profile that needs to be copied to and from a server each
> time a user logs in
> or out (creating huge lag times for login/logout).

Linda you should be shot for not fixing this already.  1GB roaming 
profiles? (gasp)  Bet the switch, server, and storage vendors just love 
you. ;)

If you've got some basic script writing ability, or can find something 
already written, simply walk the profile directory on the server and add 
the necessary lines to each user's prefs.js.  Assuming your workstations 
are already configured to delete locally cached roaming profiles at 
logoff the problem is now solved for existing users.

For new user profile creation simply create a custom default profile 
template.

-- 
Stan