I have figured out the problem, the SMTP port number that Outlook sets as the default was not working for some reason. Outlook sets the outgoing port number as 25, and my mail provider said to use the other default, ports 587.
255 people were helped by this reply
Did this solve your problem?
Sorry this didn't help.
Great! Thanks for marking this as the answer.
How satisfied are you with this reply?
Thanks for your feedback, it helps us improve the site.