Last week one of my workstation's Outlook 2007 stopped sending emails. Nothing has changed on this workstation. The emails all just get stuck in the Outbox. I am able to send the email sent from within "Test Account Settings..." properly. I have also tried the following:
Uninstalled the antivirus.
Turned off the firewall.
Cleared out the Outbox and tried sending just one email out.
There are five other workstations with the same settings that all work fine.
Created a new outlook profile.
Removed and then added the POP email address and settings.
Tried different SMTP port settings.
Can send without problems from other computers on the same LAN and can send test messages from the problem workstation.
Tried running outlook.exe /noextensions and outlook.exe /safe then tested after each.
Ran Office Diagnostics.
Did I miss anything? None of the above have fixed my problem. I do not get any Send/Receive errors so I am not sure how to further troubleshoot this. Any help would be greatly appreciated since I am at my wit's end.