Well....This error occured several times.
Maybe SMTP server is Ok, But DNS maybe not.
I will try to use IP Address instead DNS name and what the results !
Thanx, Buddy !
In mY webSite hosted in JodoHost Im using a JMAIL component to my ASP can send mails.
Im using as SMTP SERVER mail.my-domain.com
Ok, It's works ! But seveal times a error occureres in my ASP Application like "Cant find smtp server"
Probally cuz Im using a DNS with a external IP Address...