[MM3-users] Re: "Unsubscribe all" failed with large lists

Alan So wrote:

Thanks. We are still using Postorius 1.2.4 and Mailman core 3.2.0. However, there is no such issue. Is this specific to Postorius 1.3.x or a result of using together with Mailman core 3.3.2? Postorius 1.2.4 is probably not using mass-unsubscribe API. We are planning to upgrade Mailman core first to solve another issue and upgrade Postorius a bit later.

Just figure out that our production environment with Mailman core 3.2.0 do reply with the API call /3.1/lists/listname.domain/roster/member even for long lists though it takes long time to complete. However, Mailman core 3.3.2 simply give empty reply with long lists after around a minute.