need help - group imap with two domains?

[Maria Hunger]

hi everybody.

i've got a question about the use of group folders in kolab2 and horde  
and didn't found an answer in any forums or the kolab manual. maybe  
you can help...

i've got two domains (domain1.com and domain2.com) and
seperatly from each other they work very well.

but now i want to add a user with user at domain1.com to a group imap  
group at domain2.com, even better with a second mailadress for the user  
(user at domain2.com).

because i can't create a second mail for the same name i created an  
alias for the user (user at domain2.com). actually, this alias works well  
(i can write and receive mails which are sent/write directly to this  
mailadress)

but i can't add the alias mailadress to a group imap of the  
domain2.com. if i do so, kolab changes the mailadress automaticly back  
to the mainadress (user at domain1.com). and in horde, the user don't has  
access to the group folders and can't receive any mails send to the  
group at domain2.com

has anybody an idea? is it even possible in kolab2?

thx and greetings, m.

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