Thanks for the workaround , actually this was also my first thought but the inserted HTML section at the beginning of the email does look really ugly and is also from the usability side not that nice.
I would really prefer the information being displayed in the section “additional information” as it from my point of view should be after ticking the “Custom host/service notes URL” in the email parameter settings. So I guess it is a bug or for what reason is the “Custom host/service notes URL” included in the email template?
Yes, it’s an ugly workaround.
To be honest I never bothered looking deeper into this issue. I kind of hoped it was just my version getting vintage and it would work in current versions, if I would ever upgrade. (-;