[Dovecot] noob - integrating dovecot with postfix

[Mitch Pirtle]

Hi list,

Just jumped providers and am now desperately trying to get IMAP
running on a new server...  But not getting the link between postfix
and dovecot working.  :-(

My two problems are:

1) local mail seems to get into the ~/Maildirs, but not from the
outside (this is a postfix issue?)
2) I cannot find information on how to tell postfix to use virtual
domains/addresses and then connect dovecot to them (as they are now in
non-standard locations and/or formats)

I'm sure this is a FAQ, but cannot find an example that would walk me
though this.  Can someone kindly point me in the right direction?

-- Mitch