smtplib help

Kragen Sitaker kragen at
Mon Nov 26 20:38:15 CET 2001

"David A McInnis" <david at> writes:
> Any ideas why smtplib would crash on me after about sending 150 email msgs
> (i did not count, but that is a good estimate)?
>   File "C:\Python21\lib\", line 222, in connect
>     self.sock.connect((host, port))
>   File "<string>", line 1, in connect
> error: (10048, 'Address already in use')

That's EADDRINUSE, which generally happens when you're trying to bind
to a port that's already bound.  It sounds like your client machine is
giving you only a very small number of ephemeral ports (about 150!? 
there should be tens of thousands).  Have you tried running the code
on an operating system that doesn't suck?

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