Hi I recently leased a dedicated server and hosted few domains there and using those POP3 email as well. There is no problems receiving mail from any where (Gmail, aol, POP3 etc ....) but problem is with YAHOO and HOTMAIL only. When I have sent any mail from POP3 account to YAHOO or HOTMAIL recipients don't receive my emails at all. I don't even receive any error message or delivery failed at POP3 account. I have enabled the SPA services. Is there anyone who can help me to resolve this problem. I used another server before and there was no problem thik this. Please come forward ..............