i've been using the bat for months now with no issues at but today when i went to send a few emails they wouldn't go and i got the error:

Message has not been sent. Server reply-Authentication turned on in your email client.

The odd part is that I can send emails to other addresses on my own mail server.  i.e. my email is jimmy@mywebsite.com.  i can send an email to bobby@mywebsite.com and it goes through but when i send an email to sally@hotmail.com i get the error.

any thoughts?