SGE list appears to be broken

Can’t post from my email account, the one subscribed to, and receiving SGE email.
Claims I am not subscribed.
Ok.
Then I try from the gmail account. Accepts my subscription.
And then doesn’t let me respond.
Borked mailing lists are no fun. I screwed up the mpihmmer list for a while (by accident) without realizing it. Fixing them is even less fun (mailman is … well … a multi-cup-of-coffee-diagnostic-event)
Hopefully someone will ping the list admins to investigate.