No transport provider was avaliable for delivery to this recepient
Posted on 2010-09-16
Be patient, this is ugly.
My client refuses to connect his Exchange 2003 to the internet for security reasons. But he does have an ATT email account for external email. We use Outlook 2003 with two email accounts, Exchange and POP, with POP being the default. Emails are stored on Exchange once they arrive in Outlook.
The mailbox is 8GB.
We have Cache turned on, but he was frequently getting "outlook did not close properly" which required checking Outlook (about 10 to 15 minutes).
So I turned off cache and restarted Outlook so we could avoid the improper closing issue.
But when I did that, I started getting
"No transport provider was avaliable for delivery to this recepient"
on all his outgoing emails.
SOOOO, I had to turn Cache back on.
I have deleted his OST in the past and would like to avoid it if possible.
I ran scanost but that didn't help.
Here's the question: Why the hell can't I turn off Cache and still send emails?