Question : 550 5.7.0 Mail Sending denied

550 5.7.0 Mail Sending denied

I am getting the above error anytime I try to send an email.  

I am using Outlook 2007 to pop my GMAIL email.  

Tried rebooting, deleting/re-adding the account.  

Any thoughts?

Answer : 550 5.7.0 Mail Sending denied

Hmmm, believe it or not I ended up logging into www.gmail.com and changing my setup to HTML in there.  All of a sudden it started working in my outlook.  Who knows....

Thanks for trying guys....