Unsent mail problems

[D-Marie]

So this is happening and people aren't receiving my emails. It has a couple weeks of emails and I had no idea that people weren't receiving the messages I sent. How do I fix this?

 

[col.bris]

Yu can delete the email account and then add it back in.

 

[D-Marie]

Will I lose those messages that I need to send?

 

[J. A.]

Will I lose those messages that I need to send?

No idea.
To be on the safe side:
This is an Outlook account. Try to access it through a browser and send the emails from there.
You can delete the account from your settings afterwards and set it up again.