POP3 service hung on starting

[Steve Ens]

I've got a couple of ancient users who insist on using POP3 at a remote
office.  I had to restart the server last night for a power cutover and this
morning the service is just hung.  I can't recall for the life of me which
kill command to use to get that thing going again.  Google-fu is failing me
this morning (haven't had my coffee yet).  Any ideas?  Thanks.