[Mailman-Developers] Messages not sent out of mailman v3.0.0b4

Hey guys, we are using mailman 3.0.0b4 and we are currently have some problems with some messages that are not being sent out of mailman. I would like to know if in this version we have a command to check all messages queued on mailman, and what’s the expected behavior of mailman in this case. I mean, we’ve restarted mailman - these messages should be sent? the queue files should be deleted after that? I’m grep’ing and just found some entries of an specific message that i’m looking for on var/queue/pipeline/ dir. What does that means?

Thanks ,

Alex