> Sometimes, I get the message
> "Deferred: Connection refused by mail.yinks.com"
>
> So, Someone who get mail-acount on my box can't get the
> mail...................
> What's the problem....
Exactly what is says: "Connection refused by mail.yinks.com"
Is mail.yinks.com your host? If yes: check the logfile why sendmail
rejects connections (load too high, not enough diskspace, etc).
--
If you feel the urgent wish to send me a courtesy copy of a Usenet
posting, then make sure it's recognizable as such!
The FAQ: http://www.sendmail.org/faq/ Before you ask.