1. Use Ipv6 yes/no
2. Use recursion yes/no
3. Use efa only inbound yes/no
4. Use greylisting yes/no
5. Install additional options ( webmin, letsencrypt, etc)
6. Install additional packages. ( mc, bacula-client, xymon-client, etc)
7. Configure selinux and Firewalld based on above options
Besides how you want to use efa, the first 3 options will affect your config.
I would like to install dkim, dmarc as option, see point 3, or as a separate configure option. see point 5
I do realize the need to freeze efa4 development, to be able to launch the new efa4 version.
![Embarrassed :oops:](./images/smilies/icon/redface.gif)
Would like to know the opinion of other members ( using efa only inbound) on this.