I have written an application that allows a visitor to email a link. When I email the link to an internal address ( me@mydomain.com ) it works but when I email to an external address ( me@hotmail.com )I get an error ...

CDONTS.NewMail.1 error '80020009'

503 Application Restarting

/favorites/maillinksql.asp, line 41

I have managed to email to an external address once but prior to and since this has not worked. When this worked I had made no changes to the code so I'm a bit confused. The code is ...

Set mailmsg = Server.CreateObject("CDONTS.NewMail")
mailmsg.To = emailto
mailmsg.From = emailfrom
mailmsg.Subject = subject
mailmsg.Body = message & sig
mailmsg.Host = "mail.mtdomain.com"
mailmsg.Send

support@lunarpages.com say this is a coding problem but I'm not sure.
Regards,
Bret.