C:\Windows\system32>curl -v smtps://smtp.virginmedia.com:465 "[REMOVED]@VirginMedia.com:[REMOVED]
Here is the error I get with the curl command, I think the last line is relevant, as I also can not send any email using outlook, all settings are correct though
Your use of curl is missing the -u flag before the authentication credentials, for example
curl -v smtps://smtp.virginmedia.com -u username:password
Do not post the resulting output here but instead review it for possible reported causes and then post just the redacted part here or the VM error code.
BTW there is no need to specify :465
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