On 08/02/2018 10:19 PM, Loren Engrav via Mailman-Users wrote:

Have list with ~50 members. One fails to receive messages with email ending in @q.com. And I see notice that Mailman is having trouble (bounces) from that address.

Where do I start to sort this out?

If you have access to the MTA logs, you can see the reason for the bounce there. If not, if you set Bounce processing -> bounce_notify_owner_on_disable to Yes (if it isn't already), when the user's delivery is disabled by bounce, a notice will be sent to the list owner and it will include a copy of the bounce DSN that caused the disable.

Also, if your Mailman is 2.1.19 or newer, there is a bounce_notify_owner_on_bounce_increment setting that will send the notice each time a user's bounce score is incremented.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

On 08/02/2018 10:19 PM, Loren Engrav via Mailman-Users wrote:

Have list with ~50 members. One fails to receive messages with email ending in @q.com. And I see notice that Mailman is having trouble (bounces) from that address.

Where do I start to sort this out?

If you have access to the MTA logs, you can see the reason for the bounce there. If not, if you set Bounce processing -> bounce_notify_owner_on_disable to Yes (if it isn't already), when the user's delivery is disabled by bounce, a notice will be sent to the list owner and it will include a copy of the bounce DSN that caused the disable.

Also, if your Mailman is 2.1.19 or newer, there is a bounce_notify_owner_on_bounce_increment setting that will send the notice each time a user's bounce score is incremented.

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan