trend pc-cillin; sending multiple emails; bigpond; e-mail size; keeps sending e-mails

Trend pccillin with outlook sending multiple copies of emails using server

  We came across an issue with a client after installing Trend PC-cillin 2009 where when they send messages with large attachments, multiple copies of the attachment would be sent to the recipient causing much grief. The issue appears to be because of a timeout transmitting the large e-mails to the server. This-