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Question How can I secure my Mail with Letsencrypt next to Cloudflares Origin Certificate in Plesk?

cpulove

New Pleskian
Server operating system version
Debian 12 latest
Plesk version and microupdate number
latest
I fimnally was able now to install a Origin Certificate on my Plesk Server.


My question now, how can I use Letsencrypt to secure my E-Mail, next to cloudflares origin.

Cloudflare Certificate Secures the host itself, so: hostname.xy and the wildcard *.hostname.xy
In Plesk I setup SSL the same way: hostname.xy + wildcard *.hostname.xy + webmail.hostname.xy to secure everything from serverside to cloudlfare.
Alls DNS entries which are proxied use the Cloudflare Certificate.

But how about my mail domain A_Record? mail.hostname.xy

If setup, this should create an error, as this DNS entry will be not proxied and therefor show an SSL error?

What is best practice to use both (cloudflare for all http traffic) and Letsencrypt side by side?
Is a valid solution to create a subdomain mail.hostename.xy and secure this exclusively via Hosting > SSL/TLS dropdown menu with the Letsencrypt Certificate from the main domain setup which also secures POP3, IMPA and SMTP?

Here is an article with an open question at the end of the comments?


If someone could help here, would be awesome!
 
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