SO, due to a DNS change over the week-end, email stopped working on my Blackberry (I am set-up through AT&T to imap into my ISP managed email server).
To get the mail up and going again, I had to delete my email accounts on the AT&T Blackberry service (www bot att dot blackberry dot com) and recreate them. The service books got pushed to my device (Bold) and mail started to flow again.
But... when I create a new email on my device, it uses the wrong email account by default. I looked all over the mail app menus but couldn't find a way to change that.
Any pointers (short of deleting my email accounts on the AT&T Blackberry site and creating them in a different order) appreciated.