Relay access denied

This the the error that I get when trying to send e-mail from Outlook to any other e-mail address.
554 : Relay access denied

I am able to receive messages. do I have something set up wrong?

my incoming and out going servers match, I test it and it says that it works. any help would be appreciated.

It could be your isp. If you are on cox, comcast, bellsouth, etc. you must set your outgoing smtp mailserver to theirs, ie, or, etc. then remove the requires authentication, and make sure your outgoing mail port is set to 25.

sorry, set up the port to 587 if 25 doesn’t work. Especially for cox.