I've noticed that Outlook 2003 duplicates outgoing mail when attachments are over about 3MB. This also cause the offending email to be "locked" in the Outbox. I've noticed this problem with more than one SMTP server.
I've looked on google but have been unable to find a definitive answer.
Any ideas please?
I've looked on google but have been unable to find a definitive answer.
Any ideas please?