ZhangHuangbin wrote:
*) It's better to request to remove your client from blocklist.
*) If you cannot remove it, try below steps:1) Append IP address of your client in Postfix parameter "mynetworks =". Reference: http://www.postfix.org/postconf.5.html#mynetworks
2) On your client side, configure the MTA to use your server as relay host. If it's running Postfix too, please set it in parameter "relayhost =". Reference: http://www.postfix.org/postconf.5.html#relayhost
Thanks so much I already requested the deenlisting and they are ok now thanks again...and the relaying works for emergencies like what happen to them...