A couple of emails went out 2 days ago, bu I haven't been able to send any for 3-4 days now. All my settings have been checked and double checked and are correct.
This is the message I get:

As I say, my settings are correct, and outlook says I have no issues with the account.

The last few days I have been unable to send email. I do receive them though. I am using outlook.com for email, and I have contacted outlook to confirm any issues. They point me to the client as I have no restrictions with outlook. A couple of emails went out 2 days ago, bu I haven't been able to send any for 3-4 days now. All my settings have been checked and double checked and are correct. This is the message I get: Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp-mail.outlook.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. As I say, my settings are correct, and outlook says I have no issues with the account. Please help. Is this a bug as i have been sending emails with no issues up to 3-4 days ago. The new version has been installed and not corrected the issue.

Once surfshark  is turned off the emails work as they should. I have had to switch VPN's to solve the issue.