Undeliverable Email test

Undeliverable Email test
Last week I got this message several times.

This is a test to see if I still have this problem.

Your message did not reach some or all of the intended recipients.

  Subject:  FW: [Matplotlib-users] update to: I can not get matplotlib to work on a windows xp professional machine

  Sent:     3/8/2006 1:00 PM

The following recipient(s) could not be reached:

  matplotlib-users@lists.sourceforge.net on 3/8/2006 1:04 PM

        There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.

        < -a #5.5.0 SMTP; 550 Don't like your HELO/EHLO. Hostname must contain a dot.>