How to setup mail redirect with just DNS MX/TXT records:
- Create a new MX record for your domain that points to
- Create a new TXT record for your domain that uses
prefix.at.as subdomain and the target mail as TXT value.
For example: If you want to redirect email@example.com to firstname.lastname@example.org
The TXT record should look like this:
info.at.customdomain. TXT email@example.com