Issue Some sites don't send email when Let's Encrypt ssl certificate will expire

[tanasis]

Server operating system version

AlmaLinux 8.9

Plesk version and microupdate number

Version 18.0.57 Update #5

Hello eveybody and happy new year!

I have a strainge problem...
Some sites don't send email when Let's Encrypt ssl certificate will expire.
The notification email is valid. I use the same for all sites... but some sites don't send the expiration notification email...
How can I check this issue ?

 

[tanasis]

Hello,
Only me have this problem ?

Plesk's Let's Encrypt doesn't send me email when I'm using Cloudflare as DNS "holder".
Not all website, but some of them.

How can I cveck this issue ?