I supported Lotus Notes for 15 years first with Lotus then with IBM . Always got a bad rap. But a lot of fortune 500 companies use it still.
You are a superhero in my book.
The guy who retired was a brilliant administrator that did all kinds of amazing gee-whiz stuff in hardware and software would be periodically hit the wall with notes.
Those times he would be in his office a few hours. When he got confounded, it was rare thing and Notes was the usual culprit.