Hi @Mstall
I think the reason the backlog link is dead is because this feature has been implemented.
So, Events module does have anniversary emails which was introduced in v6.6.
Here are more details from the release notes:
Treepl CMS Features for Treepl Partners & CMS Resellers
and the Release Notes review here:
V6.6 Release Notes and Video Review
Hope this allows you to deliver your project on Treepl now 