I have configured a postfix linux server. I can get mail from root to outside email accounts.
My mails from outside world, I don't receive. I have followed the steps from the following links which does not seem to work.
iptables -I INPUT 2 -p tcp --dport 587 -j ACCEPT
iptables -I INPUT 3 -p tcp --dport 110 -j ACCEPT
iptables -I INPUT 4 -p tcp --dport 143 -j ACCEPT
iptables -I INPUT 5 -p tcp --dport 993 -j ACCEPT
iptables -I INPUT 6 -p tcp --dport 995 -j ACCEPT
Also please point me to appropriate mailbox setup. I have a setup of firstname.lastname@example.org
then I don't receive any email for user info from root user or outside world.
Look forward to your comments.