We have the occasional problem with e-mail.  The solution is to go into
the InvoiceItems table and shorten the description of the charge.  As soon
as this is complete, the e-mail is sent without any problems.
  Delete, then re-create the invoice, but try a shorter description.
Hopefully this will work for you.
 
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  David Khoury                        |  "Where's the KABOOM ??
  Technical Manager & Comms Engineer  |   There was supposed to be an
  dave@flex.com.au                    |    earth shattering KABOOM!!"
  http://www.flex.com.au/~dave        |              Marvin the Martian
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