550 5.7.1 Requested action not taken: message refused
Posted on 2006-04-02
SBS 2003 Exchange server
Messages refused from my Yahoo.com email . firstname.lastname@example.org to email@example.com.
Messages accepted from my own domain email. firstname.lastname@example.org to email@example.com
Hi. This is the qmail-send program at yahoo.com.
I'm afraid I wasn't able to deliver your message to the following
This is a permanent error; I've given up. Sorry it didn't work out.
220.127.116.11 failed after I sent the message.
Remote host said: 550 5.7.1 Requested action not taken: message refused.
why and what should i do in the exchange server in order to accept both from yahoo and my domain's emails?