Messed up iptables ... need help getting it back to default

Ok well I knew I would do it and a I did. I attempted to add a firewall to my site and ended up crapping up my iptables file. Does anyone know how to recreate the default iptables ? OR what I need to enter to get it to look like this again?

Code:

Chain INPUT (policy ACCEPT)
target     prot opt source               destination
fail2ban-dovecot-pop3imap  tcp  --  anywhere             anywhere             multiport dports pop3,pop3s,imap2,imaps
fail2ban-pureftpd  tcp  --  anywhere             anywhere             multiport dports ftp
fail2ban-sasl  tcp  --  anywhere             anywhere             multiport dports smtp
fail2ban-ssh  tcp  --  anywhere             anywhere             multiport dports ssh

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain fail2ban-dovecot-pop3imap (1 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

Chain fail2ban-pureftpd (1 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

Chain fail2ban-sasl (1 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

Chain fail2ban-ssh (1 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere