The users mailing list is user@geronimo.apache.org. You can subscribe by sending an e-mail to user-subscribe@geronimo.apache.org. To catch up on old messages, read the mailing list archive

The developers mailing list is dev@geronimo.apache.org, a high-volume list currently receiving from 600 to 1,000 messages a month. You can subscribe by sending an e-mail to dev-subscribe@geronimo.apache.org. To catch up on old messages, read the mailing list archive.