This. I have requested to redhat mailing list several times to STOP sending mailman account reminder with my password in plaintext. And they still do and no one listens. I give up on it and unsubscribe immediately. Away from any redhat mailing list from that point.
"redhat.com mailing list memberships reminder"
It's bullshit when people send my password in plaintext to my email account and they ignore my complains when they said "if you have questions send to this owner emaiil." Bullshit. Why do they need to remind me about my password in the first place?
From what I can tell mailman stores thing in plaintext. I personally don't see why anyone can't write 20 lines of code to do a crypt with sha256/sha512 (crypt$5, crypt$6). It's almost idiotic.