06-29-2013 05:43 PM
06-29-2013 05:57 PM
Hi and Welcome to the Community!
To be clear...there is no Outlook Client on a BB device...so I must assume that you are talking about your email service, and that is Outlook.com. I do wish that MS hadn't propogated the word "Outlook" to so many different platforms (e.g., Outlook.com, Outlook PC client, Outlook Web Access, etc.).
In any event, with a strong carrier network signal (e.g., not merely WiFi), I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):
1) Register HRT
2) Delete and Resend Service Books (pre-BB10 devices only)
Hopefully that will get things going again for you! If not, then you should try deleting and re-adding your configurations for the affected email accounts. Otherwise, you should contact your mobile service provider for formal support.