I have Outlook 2013, which does not send e-mails! It is connected to the server and is online. The progress bar says the sending task is complete but the e-mails remain unsent! Tried the fixes listed on the site but none are applicable - any help much appreciated, it is driving me mad!

Hi,

Try to send the email from the web based mail or OWA, can it be actually sent?

Did you just upgrade to Windows 10?

I suggest you check the firewall settings, is there any setting that monitors the outgoing emails? Disable it to check the result.

Regards,

Melon Chen
TechNet Community Su

Hi,

When the Outlook program not send emails, then it can be caused by several issues: -

1.    An Outlook Add In is not functioning
2.    Incorrect mail settings
3.    Security software blocking email
4.    A corrupted Outlook profile.
5.    A problem with the Outlook profile.
6.    A problem with the Outlook application.

To fix the issue, follow these steps: -

1.    Open Outlook in Safe Mode.
2.    Verify email settings
3.    Start the Outlook profile
4.    Create a new Outlook profile
5.    Repair Outlook via the installer.