Correct rDNS setup for mail-domain

Discuss Advanced use case
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1

Hi there,

I have a question regarding the correct configuration of rDNS.

yunohost is running on a subdomain (yunohost.example.com) on a VPS, but manages the mails for the main domain (example.com, which is running on my home server).

I achieved this by setting up DNS-entries.
MX for example.com points to yunohost.example.com

I’m writing and receiving mails from addresses in the form of *@example.com.

Now I’m unsure, how my rDNS entry should look like. Should the IP-Adress be solved to example.com or to yunohost.example.com?

Any help is very much appreciated, and I’m happy to provide more information if necessary.
Samuel

1 Like
Yunohost on Subdomain, Mail on main domain
2

Hi there,

I think I found the solution, as this question is not really yunohost-specific.

The reverse dns entry should be for the mail subdomain, even if this domain is capable of receiving and sending mails for the main domain.

Best regards!
Samuel

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Hi @samuel-ynh,
is this setup to have a mail-only domain still supported in YNH 12.x? To me it seems, that adding a domain example.com to YNH the SSO now always redirects from yunohost.example.com to example.com which will fail when YNH does not run its httpd on example.com…

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It’s still possible, but requires some work:

1 Like
5

Thanks, that helped me a lot!

Maybe the symlink is no more necessary according to the release notes of YNH 12.1… I’ll check!

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Good to hear, the writeup helped you!

If the symlink isn’t neccessary anymore, I would love to hear about it, to update the post.