I'm trying to do an IMAP connection.  My first target is gmail:

Net::IMAP.new("imap.gmail.com", 143)

goes walkabout on line 886:

TCPSocket.open("imap.gmail.com", 143)

AT&T swears they are not port blocking.  My system logs are clean.

The code for TCPSocket is compiled in, so inserting printfs is going to
be really painful.  Moreover, the actual error is probably a ways down
the stack.

Ideas?
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