Hello.. I am nubie here and I got problem with my debian server : I have domain at godaddy.com (bluevisionnetworks.net) and I have pointing it to my own server by the Static IP (115.124.67.164) I also build second server as mail server for this domain, it's also static IP (115.124.67.166) (mail.bluevisionnetworks.net) OS Web server is debian etch x64 and Plesk 9.2 as control panel OS Mail server is debian etch x68 and zimbra 5 (ZCS) the problem is I can send email to inside and outside of the network, but I cannot receiving email from outside of my network and domain and here's some configuration at Mail Server since I cannot receiving emails so temporary I change IP of mail server at Total DNS at Godaddy to my web server (115.124.67.164) and here's DNS zone at Web Server (115.124.67.164) I have searching on the zimbra forum for this, I have checked that port 25 has not blocked by my ISP, I have try re-install zimbra twice and I disable DNS relay also rejected SMTP is unchecked but not working almost forgot, if I trying to restart bind it's always failed, and cannot be restarted : failed to connect 127.0.0.1:953 connection refused somebody please help me for resolve this problem? many thanks and excuse me for my bad english