While mountain biking I took some pics with my 8130 and sent them to my wife. I had no service while biking and assumed that the emails would be sent when I got back in to the service area. What happened was that the emails tried to go, failed, and then just sat with a red X on them. Is there a way to have the 8130 only send when service is available? Or re-try every hour? How is this handled when sending emails on a plane?
I don't normally use my 8830 on a plane. But if I do, with the radio turned off, I don't hit send. I just save the messages as drafts and send them after I turn the radio back on. I know that's not the answer you're looking for.
With my previous 7250, if I sent a message and got a clock icon, then the message would be sent whenever the bb got a signal. This mode would drain the battery very quickly, since the bb would keep trying to connect to a tower, using full power. I haven't had my 8830 long enough to see if it works the same way.