[horde] Ambiguous "Welcome," header

[Chuck Hagenbuch]

Quoting D G Teed <donald.teed at gmail.com>:

> This removes the @ and replaces it with "on" to imply only that this
> is where the imap login is connected.  I'd think it might be a  
> better default?
> It would be more rare to have an email address which includes the
> actual server name.

No, this is not a good default because the file you are modifying is  
completely independent from IMP.

-chuck