Yesterday I created and answered a number of email messages offline.
Before I logged out of Outlook, I checked the Outbox and they were in
there. This morning, I connected to the lan and started up Outlook.
After a couple of minutes, I checked the sent folder. None of the
emails were in there. I then checked the Outbox and they were not in
there either. I contacted one of the would-be recipients of my emails
30 minutes later and she did not receive any from me.

In the past, I have worked offline many times and the emails ended up
in my sent folder the next morning after connecting to the lan.

Any ideas?