[Mailman-Users] Duplicate emails being received

Hi, I've got a list with ~1600 subscribers (Mailman 2.1.39). It gets one or two messages posted to it each day (by subscribers). The problem: subscribers are all receiving duplicate copies of the original post and any replies. All the subscribers are have "nodupes" switched on, and the list i

[Mailman-Users] Duplicate emails being received

Hi, I've got a list with ~1600 subscribers (Mailman 2.1.39). It gets one or two messages posted to it each day (by subscribers). The problem: subscribers are all receiving duplicate copies of the original post and any replies. All the subscribers are have "nodupes" switched on, and the list i