funambol

I've written before about my outgoing mail problems with my BlackBerry.

I'm finally narrowing it down. Now, I'm not sure how much is the BlackBerry service and how much is the Funambol client.

I know how my BlackBerry gets mail. It's nothing special - it goes out and grabs it every 3 minutes from my IMAP server.

Sending mail has been a bit more of a mystery...

When I first create my account on blackberry.com, it works fine. Within a few days when sending an e-mail I'll get "Invalid message from server". If I choose the message again and hit "resend" it goes fine.

Since I run my own Cyrus IMAP server with eGroupware I started checking my logs and playing with tcpdump to diagnose the problem. I found something rather interesting.

Mail logs when the message sends properly would show a login from some blackberry.com server.
Mail logs when the message failed would show a login... from LOCALHOST.