[imp] Dynamically choosing server via e-mail address in login screen.

[MNSi Customer Service - Nicolas MacPherson]

Hello,

    This is my first post, and firstly, I'm not versed at all in PHP. 
(though I plan on diving headlong into it shortly)  I've been using IMP 
3 on my small ISP's site for over a year now with no issues.  My ISP was 
absorbed by another, and the new ISP has asked me to install a new IMP 
server for their mail system.  My issue is that they have 2 servers that 
my standalone IMP setup connects to.  The first only has POP 
connectivity for the time being, (we plan on upgrading it to qmail+IMAP 
soon) and the second server is running QMail+VPopmail+IMAP with over 
500+ domains on it.  My question is whether or not there is a method of 
IMP choosing which server to connect to by the e-mail address entered 
into the login prompt.  The POP machine only has a single domain, so 
basically it seems like it could be dealt with by a scenario where if 
they type in the singular domain, it uses the POP server, and any other 
domain would attempt to utilize the other.  Or am I totally barking up 
the wrong tree?  Any assistance would be greatly appreciated.  BTW, both 
machines are using IMP 3.2.7.

Thank you,

Nicolas MacPherson
nickm at mnsi.net