I have a droplet on digital ocean hosting my own web server and now I’m trying to add a mail service with some combination of dovecot and postfix. I’m running into two issues:
I am confused how to setup my MX DNS records. I tried to follow this guide, but I didn’t quite understand: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-postfix-e-mail-server-with-dovecot At the moment, I have the following. URL:: example.com MX: 2 records: mail.example.com mail handled by example.com example.com mail handled by mail.example.com Pretty sure this is wrong, but what should it be? Just the second one?
Online test services report Reverse DNS is not a valid Hostname
As far as I can tell, I have done everything right in order to have Reverse DNS lookup. My
/etc/hosts are set to
example.com and my droplet is named
The output of the host command:
% host example.com example.com has address IPV4ADDR example.com has IPv6 address IPV6ADDR example.com mail is handled by 50 mail.example.com. % host IPV4ADDR reverse_ip_address_here_.in-addr.arpa domain name pointer example.com.
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What I could suggest is the following:
After that give it a couple of hours for the DNS cache to clear over the Globe and it should be ok.
As a side note, from the host command output that you’ve shared, I was able to check your domain name and the setup looks correct at the moment I believe.