I sent out three (big emails - 6 pictures from my mobile camera) very quickly one after each other. Now after 10 or so minutes they are still in the gmail outbox folder. I experienced the same when I was connected via both wireless or mobile network.
Can I somehow push the emails to be sent out? I tried to open them and send again but it didn't help.
Last time this happened I deleted them and sent out slowly one after each other again and it went ok.
HTC Desire 2.1