My MacBook Air receives but does not send email. Trouble since the last update?

craig at San Xavier wrote:

Since the upgrade to macOS Monterey I had had trouble with email. I receive email but cannot send, it just sits in the outbox but I get no notification why. I have rebooted several times, including modem and WiFi router. None of the settings on the mail have changed that I can find. Outbound emails from my iPad and iPhone work fine. Please help (step by step drop box headings and what program please)

-Confused and behind on work....

If you can’t send or receive email on your Mac

https://support.apple.com/en-us/HT204075

Receiving mail, but unable to forward. Although the other day it worked on my new MacBook air., and stopped again. This is so frustrating. Never happened on my 10 year old Mac. Is this a glitch in the new computers. I'm ready to give up and return my computer to Costco.

goodluck, I'm having the same problem., and getting no help. Tomorrow hopefully a direct call to apple support