telnet is connot connect to this servers
You want to confirm the error a remote mailserver provides to help pinpoint what the problem may be. You may not be blacklisted but you may not have a reverse lookup IP entry. Most servers to fight spam use this method in addition to RBL.
Definitely telnet 25 to the remote mail server by mail.domain.com or IP. and go thru if you are sending an e-mail to the remote site. Just remember you will need a remote e-mail address to continue all the way thru complete.
Here’s a link to help if you don’t know the steps to telnet 25.
** Use this site to confirm your status: http://www.mxtoolbox.com/diagnostic.aspx
I chacked there is not problem on my reverse dns settings. I tryed telnet yahoo.com 25 is not connected.