Hello @ll.

I tried out a bit with LCS 2005, but still have problems understanding some basics. Hope someone can help:

I installed LCS in an Active Directory domain named "domain.local"
Certificates were created, installed and seemed to work.

The presence state within outlook is not working. My presumption:

Every user has a default mail address (user@domain.net) which is used for mailing to external recipients. This differs from the one used internal and therefor also from the one LCS uses.

So I tried the following:
- changed sip-address for a testuser (sip:user@domain.net)
Result: unable to login (sure, 'cause of the missing DNS-entries ?!, office communicator doesn't know, where the sip-service for that domain is, am I right so far?)

-added new sip-address (sip:user@domain.net) to the existing (sip:user@domain.local)
Result: login possible, still no presence-state within outlook

Can anyone help me setting up LCS for use with outlook's presence state?
I think, we'll allow external messaging someday. Will this also expect us to have an internal domain name that matches the official one?

Sorry, I can't get that up, *confused* :-)

Update:
just recognized that users cannot send messages 'cause LCS says the person is offline (what's wrong) after changing and re-changing the certificate in security-settings. Now neither the wrong nor the correct certificate will work.

Couldn't find hints in the forum yet. How can this be fixed?

Thank you and greetings

TuO