[Dovecot] Transition from Courier-IMAP

[Arno van Amersfoort]

Hello all,

Currently we are looking at the possibility of moving from Courier-IMAP 
to Dovecot (the one that comes with Debian Lenny: version 1.0.15). I'm 
currently testing it on a non-production server and have a few questions:

1) Currently all our clients use Thunderbird as their mail client to 
read mail from our IMAP server. Thunderbird is configured with "INBOX." 
as the "IMAP server directory". As we certainly do NOT want to 
reconfigure over 150 desktops, we would like to know if it's possible to 
make Dovecot work with Thunderbird Configured this way -> Simply make 
Dovecot act the same as Courier-IMAP. With the default configuration of 
Dovecot I can see the (IMAP) Inbox but not its subfolders when "IMAP 
server directory" is NOT empty. Is there a way to let Dovecot ignore 
this setting and/or make it compatible with Courier?

2) About a year back we already test-drived Dovecot but we weren't able 
to get "Delete as marked" option to work in Thunderbird in combination 
with "Expunge to trash". Any messages marked as deleted would simply be 
deleted permanently when Thunderbird was closed. This did work properly 
with Courier where any messages were expunged to Trash (as it should). 
Is this a known problem and has it been addressed yet?

Basically both questions can be brought together as "How can we make 
Dovecot as compatible as possible with Courier-IMAP"?

Thanks,

-- 
Ing. A.C.J. van Amersfoort (Arno)
Electronics & ICT Engineer
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