can anybody please help me troubleshoot this? i have a treo 600 and sprint service.

at first i would get all sort of errors upon trying to send email.

but then i fixed that.

but now when i send emails, the treo says that the emails have been sent. but none of my 6 test emails have ever arrived at the accounts where they were supposed to... and it's been 24-48 hours...

anybody know how to fix this weird problem?