Because I don't want to be interrupted when Outlook is sending and receiving
emails, I have ticked the box to say "don't show me the progress dialog box".

The problem is that, when occasionally emails don't "go", I don't notice and
they sit in my Outbox until I close Outlook, which may be many hours later.

Ideally, therefore, I would like to capture the "synchronization error
event" and make a message appear on my screen. However, I understand that,
despite the fact that the Microsoft help screens imply otherwise, you can
only capture this event when you have initiated the synchronisation from
code. ie it can't be captured for a scheduled or user-initiated
synchronization.

Can anyone confirm if this is correct and if so, how else I might do what I
want to do?

Thanks in advance.