Posted inGeneral Unix Blocking all outgoing mails in unix Posted by By Haneef Puttur March 14, 2013No Comments iptables -A OUTPUT -p tcp –-dport 25 -j REJECT /sbin/service iptables save — Haneef Puttur *************** # Knowledge is like Water, Let it FLOW.. Don’t let it Rotten somewhere.. . Haneef Puttur View All Posts Post navigation Previous Post Solution for Restoring Default Open with Windows 7Next PostHow to Remove history of Videos you watched in Youtube ?