Outlook 2013. Windows 8 Pro.
Emails from CustomerEmail@outlook.com to AnyName@sbcglobal.net get stuck in the outbox. There is no error message. The email does not even appear to attempt to send. Emails to all other domains tested work fine when sent from CustomerEmail@outlook.com (even while emails to sbcglobal.net addresses are stuck in the outbox). Example: Sending to TestEmail@gmail.com or TestEmail@outlook.com works fine (even while emails to sbcglobal.net addresses are stuck in the outbox). Multiple sbcglobal.net addresses have been attempted with the same result.
Tried so far:
I deleted auto-population of sbcglobal.net addresses, assuming there was a formatting issue preventing Outlook from recognizing the entries as correctly formatted email addresses or something similar. No change.
I installed TestEmail@outlook.com and attempted to send to AnyName@sbcglobal.net. This was successful, indicating the problem is account specific and not related to Outlook 2013 or the network.
Is there anything I should look at before I uninstall and reinstall CustomerEmail@outlook.com?