[imp] Problems with From field

[Christoph Eicke]

Hi!

I have just installed IMP and trying to figure things out. The last problem I 
seem to have is that the From: field in an outgoing e-mail is not set 
correctly. 
My scenario is the following: users authenticate to horde directly over imp, 
that is directly to the POP3 server. However the username is not the same as 
the e-mail user part because I am on a virtual host environment.
The e-mail address is christoph at geisterstunde.org, but in the From: field it 
says web2p1 at geisterstunde.org which is the login name, but christoph is an 
alias to it. How can I change that?
Also it seems that IMP is not obeying the identities I have set up in the 
horde_prefs table. Identities and everything else inserted into the "Options" 
page of the IMP users page is also not displayed there, even though it is in 
the db.

Thanks,
Christoph