In my case Webmail is not the issue!
I have the same problem. there is a new forum package available that might solve some of my problems, but I can't install. I assume the notifications also influence weblogger, as on my weblog notifications also doesn't work.
Together with mess in the permission system related to forums as per this post https://openacs.org/forums/message-view?message_id=188766 , I am having a hard time but I keep 😉 I tried the "write" tip, but that didn't work unfortunately.;
Has anybody found a way around this?
Thanks
Ben