Getting Favorite Clients Working

General Client Configuration Recomendations
How do I use Citadel's calendar, address book, etc. from KOrganizer (or other GroupDAV client)?
How can I import LDIF format contacts into an address book room?
How do I retrieve mail from remote servers/accounts and file that mail into Citadel?
I have duplicate mails in my 'Sent Items' folder. Why?
VCards and Citadel
How do I move all of my mail from a legacy mail server to Citadel?
Can I connect to Citadel with Microsoft Outlook?
"mutt" runs slow! Why?
Using your Citadel calendar and contacts in Thunderbird
What URL's do I use for 'webcal' publish/subscribe, with Mozilla Lightning/Sunbird, Apple iCal, etc.?
When I send a message using Thunderbird, it hangs on "Copying message to Sent folder"
Why don't I see my public folders when I connect with Novell/Ximian Evolution?