Agreed. The manage page should be more of a Bio and include things like their location, age and verification.

Agreed

To add, this button starts to work after I have invested in my first manager.

Specifically, this is the invest button on the programme details page.

No, but its something for the team to investigate. Do they have DKIM signing turned on for example? As a developer, if all my emails were not being delivered it would prompt me to check with my mail provider what I can do to ensure delivery.

Imagine if you get an email which says a login has been successful but you didn't trigger it, I'd like to know it has the best chance of being delivered immediately without me adding the sender to my whitelist (as most won't).

Just to add, this is TLSv1.0 and v1.1.

v1.2 I believe should be the only one enabled.