dap1--- via Mailman-users writes:
I did not use the back button.
If it matters, I tried the "forgot password" link and it immediately went to the 403 page. I tried with both Firefox (my main browser) and chrome.
If there were a password problem, I'm pretty sure you get a successful fetch (status = 200, not 403) but the returned page tells you credentials are invalid. On the other hand, you do get to the login page so it's very probably not a file or directory permissions problem.
I took a look at the csrf settings in the template system but it's insanely complicated, and I couldn't figure out a simple fix. With all due respect to Mark, I have no confidence that you're "getting close" to a working system. If this is a system that doesn't provide any services but Mailman I'd say start over.
-- GNU Mailman consultant (installation, migration, customization) Sirius Open Source https://www.siriusopensource.com/ Software systems consulting in Europe, North America, and Japan