Thanks for the help and infos, Ales.
"have you perhaps switched from HTML back to plain text notifications in plesk.ini?"
It is something the web host has done (they are trying to help as well, but so far without success) via the panel.ini file, as per these docs:
Resolved - Plesk Obsidian -...
Just got a new email notification for Let's Encrypt.. the email now is in plain-text format but completely blank/empty. Before with the HTML format emails, there were included a few social media buttons/links (and nothing else). Now after switching to plain-text the email literally is completely...
Thanks, I set both notifications to "Default" as prescribed. Nothing on screen changed though, the same text/content before and after. Guess will know soon whether it works. Thanks again for the reply.
Since the upgrade to "Plesk Obsidian 18.0.21 Update #3", all of the "Let's Encrypt" email notifications are blank. Also the empty/blank emails now for some reason are in HTML format (before they were plain text, I think).
How to resolve the blank email issue?
How to switch back to plain-text...