Setup dmarc record? and rDNS for codema.in ip?

We can use the vpn ip or smtp over ssh https://p5r.uk/blog/2017/smtp-via-ssh-tunnel.html (which I have tested on oracle free vm - I have to ssh to the oracle free vm and relay the mail from there).

cc @bady @bhe @asd @akhilvarkey @abbyck

Since libreinfra.org was not reliable, Akshay has configured his personal mail server for now. But it is on some blacklists due to missing rDNS entry. Instead of maintaining two ips for mail server reputation, I think it is easier to maintain just one and since we already maintain lists.fsci.in we should reuse that effort as well.

• Alternatively ask Akshay if he wants to continue offering his smtp server since he already has good reputation. Either way we have to cleanup unused MX records and unused servers listed in SPF record.

Update: Akshay agreed to continue offering the smtp service, so we can stay with it.

• Setup dmarc record?