Hi, Just testing cyrus-murder in our lab with 1 mc each of frontend, backend, master when I send mails to the frontend box this is what I get. Nov 22 17:26:39 location postfix/lmtp[18284]: 2DE2E11E5C6: to=<rohit@xxxxxxxxxxxxxxxxxxxxxxxxxx>, relay=none, delay=2.9, delays=2.9/0.01/0.01/0, dsn=4.4.1, status=deferred (connect to location.exampledomain.com[/var/imap/socket/lmtp]: Connection refused) Any Ideas as to why this is happening I even kept lmtp open to all connections and added entries into /etc/hosts.allow for all.... I've included my config below frontend Config ----------------------- sievedir: /usr/sieve configdirectory: /var/imap partition-default: /var/spool/imap admins: cyrus murder sasl_pwcheck_method: saslauthd allowplaintext: yes unixhierarchysep: 1 sasl_mech_list: plain hashimapspool: true virtdomains: yes altnamespace: on sendmail: /usr/sbin/sendmail defaultdomain: exampledomain.com expunge_mode: immediate tls_cert_file: /etc/certs/server.pem tls_key_file: /etc/certs/server.pem tls_ca_file: /etc/certs/server.pem lmtp_allowplaintext: yes mupdate_server: master mupdate_port: 3905 mupdate_authname: murder mupdate_username: murder mupdate_config: standard mupdate_password: murder mupdate_retry_delay: 10 backend_password: murder proxy_authname: murder SERVICES { mupdate cmd="mupdate" listen=3905 prefork=1 imap cmd="imapd" listen="imap" prefork=5 lmtp cmd="lmtpd" listen="*:lmtp" prefork=1 } Backend config ---------------------- sievedir: /usr/sieve configdirectory: /var/imap partition-default: /var/spool/imap admins: cyrus murder sasl_pwcheck_method: saslauthd allowplaintext: yes unixhierarchysep: 1 sasl_mech_list: plain hashimapspool: true virtdomains: yes altnamespace: on sendmail: /usr/sbin/sendmail defaultdomain: exampledomain.com expunge_mode: immediate tls_cert_file: /etc/certs/server.pem tls_key_file: /etc/certs/server.pem tls_ca_file: /etc/certs/server.pem lmtp_allowplaintext: yes proxyservers: murder mupdate_server: master mupdate_authname: murder mupdate_password: murder proxy_authname: murder proxy_password: murder START { recover cmd="ctl_cyrusdb -r" idled cmd="idled" mupdatepush cmd="ctl_mboxlist -mw" } SERVICES { imap cmd="imapd" listen="imap" prefork=5 pop3 cmd="pop3d" listen="pop3" prefork=3 sieve cmd="timsieved" listen="sieve" prefork=0 lmtp cmd="lmtpd" listen="*:lmtp" prefork=1 } Thanks & Regards Derwyn ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html