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protocols = imap pop3## Uncomment the ssl_listen statements and comment out listen if using SSLprotocol imap {listen = *:143# ssl_listen = *:993}protocol pop3 {listen = *:110# ssl_listen = *:995}syslog_facility = mail# Uncomment these if using SSL#ssl_cert_file = /etc/ssl/rnd/mailserver/smtpd.crt#ssl_key_file = /etc/ssl/rnd/mailserver/smtpd.key#ssl_ca_file = /etc/ssl/rnd/mailserver/cacert.pem#ssl_verify_client_cert = yes#ssl_parameters_regenerate = 168#verbose_ssl = no## Where the mailboxes are locatedmail_location = maildir:/var/vmail/%d/%u#first_valid_uid = 150#protocol imap {login_executable = /usr/libexec/dovecot/imap-loginmail_executable = /usr/libexec/dovecot/imap}protocol pop3 {login_executable = /usr/libexec/dovecot/pop3-loginmail_executable = /usr/libexec/dovecot/pop3}protocol lda {postmaster_address = postmaster@sip.rnd.pksendmail_path = /usr/lib/sendmail}##auth default {mechanisms = PLAINpassdb sql {args = /etc/dovecot-mysql.conf}userdb sql {args = /etc/dovecot-mysql.conf}}disable_plaintext_auth = nologin_process_per_connection = yeslogin_processes_count = 2login_max_processes_count = 128login_greeting = Welcome to R&D Mail Server.