imap proxy?

[Brian Henson]

Can someone give me an example of how to do an IMAP and POP3 proxy in 
nginx.  What i need to do is send all requests for domain1.com to one 
server and all requests for domain2.com to another.  I have read the 
examples on the wiki but I do not understand them.  I have a working 
HTTP and HTTPS install now and would like to further secure my servers.  
Any help would be appreciated



Brian.