Thanks for peeking at this. The three config files follow:

/etc/dovecot/dovecot.conf

listen = *,[::]
protocols = imap pop3
authmechanisms = plain login
disableplaintextauth = no
logtimestamp = “%Y-%m-%d %H:%M:%S ”
mailprivilegedgroup = vmail
sslcert = </etc/postfix/smtpd.cert
sslkey = </etc/postfix/smtpd.key
sslprotocols = !SSLv2 !SSLv3
passdb {
args = /etc/dovecot/dovecot-sql.conf
driver = sql
}
userdb {
args = /etc/dovecot/dovecot-sql.conf
driver = sql
}
plugin {
quota = dict:user::file:/var/vmail/%d/%n/.quotausage
sieve=/var/vmail/%d/%n/.sieve
}
service auth {
unixlistener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
unixlistener auth-userdb {
group = vmail
mode = 0600
user = vmail
}
user = root
}
service imap-login {
clientlimit = 1000
processlimit = 500
}
protocol imap {
mailplugins = quota imapquota
}
protocol pop3 {
pop3uidlformat = %08Xu%08Xv
mailplugins = quota
}
protocol lda {
mail_plugins = sieve quota
}

*/etc/postfix/master.cf *

Postfix master process configuration file. For details on the format

of the file, see the master(5) manual page (command: “man 5 master”).

Do not forget to execute “postfix reload” after editing this file.

service type private unpriv chroot wakeup maxproc command + args

(yes) (yes) (yes) (never) (100)

smtp inet n - - - 1 postscreen

smtpd pass - - - - - smtpd

dnsblog unix - - - - 0 dnsblog

tlsproxy unix - - - - 0 tlsproxy

submission inet n - - - - smtpd
-o syslogname=postfix/submission
-o smtpdtlssecuritylevel=encrypt
-o smtpdsaslauthenable=yes
-o smtpdclientrestrictions=permitsasl_authenticated,reject

-o miltermacrodaemon_name=ORIGINATING

smtps inet n - - - - smtpd
-o syslogname=postfix/smtps
-o smtpdtlswrappermode=yes
-o smtpdsaslauthenable=yes
-o smtpdclientrestrictions=permitsaslauthenticated,reject

-o miltermacrodaemon_name=ORIGINATING

628 inet n - - - - qmqpd

pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo n - n 300 1 qmgr

qmgr fifo n - n 300 1 oqmgr

tlsmgr unix - - - 1000? 1 tlsmgr
rewrite unix - - - - - trivial-rewrite
bounce unix - - - - 0 bounce
defer unix - - - - 0 bounce
trace unix - - - - 0 bounce
verify unix - - - - 1 verify
flush unix n - - 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - - - - smtp
relay unix - - - - - smtp

-o smtphelotimeout=5 -o smtpconnecttimeout=5

showq unix n - - - - showq
error unix - - - - - error
retry unix - - - - - error
discard unix - - - - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - - - - lmtp
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache

Interfaces to non-Postfix software. Be sure to examine the manual

pages of the non-Postfix software to find out what options it wants.

Many of the following services use the Postfix pipe(8) delivery

agent. See the pipe(8) man page for information about ${recipient}

and other message envelope options.

maildrop. See the Postfix MAILDROP_README file for details.

Also specify in main.cf: maildropdestinationrecipient_limit=1

maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d vmail ${extension} ${recipient} ${user} ${nexthop} ${sender}

Recent Cyrus versions can use the existing “lmtp” master.cf entry.

Specify in cyrus.conf:

lmtp cmd=“lmtpd -a” listen=“localhost:lmtp” proto=tcp4

Specify in main.cf one or more of the following:

mailbox_transport = lmtp:inet:localhost

virtual_transport = lmtp:inet:localhost

Cyrus 2.1.5 (Amos Gouaux)

Also specify in main.cf: cyrusdestinationrecipient_limit=1

cyrus unix - n n - - pipe

user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}

Old example of delivery via Cyrus.

old-cyrus unix - n n - - pipe

flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}

See the Postfix UUCP_README file for configuration details.

uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)

Other external delivery methods.

ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}

dovecot unix - n n - - pipe
flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${user}@${nexthop}
amavis unix - - - - 2 smtp
-o smtpdatadonetimeout=1200
-o smtpsendxforwardcommand=yes

127.0.0.1:10025 inet n - - - - smtpd
-o contentfilter=
-o localrecipientmaps=
-o relayrecipientmaps=
-o smtpdrestrictionclasses=
-o smtpdclientrestrictions=
-o smtpdhelorestrictions=
-o smtpdsenderrestrictions=
-o smtpdrecipientrestrictions=permitmynetworks,reject
-o mynetworks=127.0.0.0/8
-o strictrfc821envelopes=yes
-o receiveoverrideoptions=nounknownrecipientchecks,noheaderbodychecks

** /etc/postfix/main.cf **

See /usr/share/postfix/main.cf.dist for a commented, more complete version

Debian specific: Specifying a file name will cause the first

line of that file to be used as the name. The Debian default

is /etc/mailname.

myorigin = /etc/mailname

smtpdbanner = $myhostname ESMTP $mailname (Debian/GNU)
biff = no

appending .domain is the MUA’s job.

appenddotmydomain = no

Uncomment the next line to generate “delayed mail” warnings

delaywarningtime = 4h

readme_directory = /usr/share/doc/postfix

TLS parameters

smtpdtlscertfile = /etc/postfix/smtpd.cert
smtpdtlskeyfile = /etc/postfix/smtpd.key
smtpdusetls = yes
smtpdtlssessioncachedatabase = btree:${datadirectory}/smtpdscache
smtptlssessioncachedatabase = btree:${datadirectory}/smtpscache

See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for

information on enabling SSL in the smtp client.

myhostname = caltaer.com
aliasmaps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
aliasdatabase = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
myorigin = /etc/mailname
mydestination = caltaer.com, localhost, localhost.localdomain
relayhost =
mynetworks = 127.0.0.0/8 [::1]/128
mailboxsizelimit = 0
recipientdelimiter = +
inetinterfaces = all
htmldirectory = /usr/share/doc/postfix/html
virtualaliasdomains =
virtualaliasmaps = hash:/var/lib/mailman/data/virtual-mailman, proxy:mysql:/etc/postfix/mysql-virtualforwardings.cf, proxy:mysql:/etc/postfix/mysql-virtualemail2email.cf
virtualmailboxdomains = proxy:mysql:/etc/postfix/mysql-virtualdomains.cf
virtualmailboxmaps = proxy:mysql:/etc/postfix/mysql-virtualmailboxes.cf
virtualmailboxbase = /var/vmail
virtualuidmaps = static:5000
virtualgidmaps = static:5000
inetprotocols = all
smtpdsaslauthenable = yes
brokensaslauthclients = yes
smtpdsaslauthenticatedheader = yes
smtpdrecipientrestrictions = permitmynetworks, permitsaslauthenticated, rejectunauthdestination, checkrecipientaccess mysql:/etc/postfix/mysql-virtualrecipient.cf
smtpdtlssecuritylevel = may
transportmaps = hash:/var/lib/mailman/data/transport-mailman, proxy:mysql:/etc/postfix/mysql-virtualtransports.cf
relaydomains = mysql:/etc/postfix/mysql-virtualrelaydomains.cf
relayrecipientmaps = mysql:/etc/postfix/mysql-virtualrelayrecipientmaps.cf
proxyreadmaps = $localrecipientmaps $mydestination $virtualaliasmaps $virtualaliasdomains $virtualmailboxmaps $virtualmailboxdomains $relayrecipientmaps $relaydomains $canonicalmaps $sendercanonicalmaps $recipientcanonicalmaps $relocatedmaps $transportmaps $mynetworks
smtpdsenderrestrictions = checksenderaccess mysql:/etc/postfix/mysql-virtualsender.cf
smtpdclientrestrictions = checkclientaccess mysql:/etc/postfix/mysql-virtualclient.cf
smtpdclientmessageratelimit = 100
maildropdestinationconcurrencylimit = 1
maildropdestinationrecipientlimit = 1
virtualtransport = dovecot
headerchecks = regexp:/etc/postfix/headerchecks
mimeheaderchecks = regexp:/etc/postfix/mimeheaderchecks
nestedheaderchecks = regexp:/etc/postfix/nestedheaderchecks
bodychecks = regexp:/etc/postfix/bodychecks
ownerrequestspecial = no
smtptlssecuritylevel = may
smtpdtlsmandatoryprotocols = !SSLv2, !SSLv3
smtpdtlsprotocols = !SSLv2,!SSLv3
smtptlsprotocols = !SSLv2,!SSLv3
dovecotdestinationrecipientlimit = 1
smtpdsasltype = dovecot
smtpdsaslpath = private/auth
contentfilter = amavis:[127.0.0.1]:10024
receiveoverrideoptions = noaddressmappings