Trying to figure out Proxying with LMTP to a few back end storage servers for quota checking before accepting email delivery on the front end nodes.

If I connect to the back end server directly via telnet, everything works great.

If I use a front-end server to proxy to the back end server, I don't get the same result.

Running 2.2.4 on both front and back end servers.

Any help would be appreciated.

backend dovecot.log: dovecot: lmtp(72274): Error: userdb lookup(user@host*masteruser): Disconnected unexpectedly dovecot: auth: Fatal: master: service(auth): child 72272 killed with signal 11 (core not dumped)

front end dovecot.log: dovecot: lmtp(7495): Debug: auth input: user=user@host.comnopassword=<hidden> host= destuser= user@host.com*masteruser nologin=Y nodelay=Y proxy=Y pass=<hidden> port=2525

front end dovecot.conf: lmtp_proxy = yes protocols = lmtp

protocol lmtp { postmaster_address = postmaster@mydomain.com mail_plugins = quota

passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } }

service lmtp { client_limit = 5 executable = lmtp idle_kill = 0 process_limit = 0 process_min_avail = 0 protocol = lmtp service_count = 0 inet_listener lmtp { address = port = 2525 } }

backend dovecot.conf: auth_master_user_separator = * lmtp_rcpt_check_quota = yes passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql master = yes } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf driver = sql } service lmtp { client_limit = 5 executable = lmtp -L idle_kill = 0 process_limit = 0 process_min_avail = 0 protocol = lmtp service_count = 0 inet_listener lmtp { address = port = 2525 } }

protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log postmaster_address = postmaster@infowest.com mail_plugins = quota }