I had setup an exchange shared mailbox, initially I was able to receive emails and such, everything looked good. I attempted to send from and had issue, not a big issue, however, I removed the draft of the failed message, and found that I can no longer refresh the account. I have removed, packed and restarted my phone, and then added the account again, to get the same failed message below:'
'Error synchronizing mail Message is missing on the server: HTTP/1.1 503 Service Unavailable.'
What is this, and how do I correct this?
I have 2 other account working already, and don't really want to clear all cache and such from the app.