I have just built up a new server using RHEL4 update 4 and have Courier 0.54.2
and Courier Authlib 0.59 installed.

The Courier packages were installed using rpmbuild -ta to create rpms and the
rpm -ivh was used to install Authlib and Courier. rpmbuild was executed as a
standard user. The rpm install was run as user = root. Defaults were used all
the way through.

Now I have a problem where everything but inbound mail seems to be working. I
can run authtest as root and get Authentication succeeded. The Webmail interface
is working and I can login and send messages from the account. IMAP is installed
and I can connect with a mail client and see folders created using the webmail
interface. I can also get to webadmin and change settings.

Again, I can send but can not receive.

I ran testmxlookup against my domain and it returns the correct public IP
address for the mail server.

/etc/courier/me has my correct domain name in it. The same for the locals and
defaultdomain files.

If I stop courier then courier-authlib and then restart, I do not see any error
messages when the modules load:

/etc/init.d/courier-authlib start Starting Courier authentication services: authdaemond

/etc/init.d/courier start Starting Courier mail server: courierfilter webmail courierd esmtpd imapd
imapd-ssl

Checking maillog, I see messages like this:

Jan 25 21:17:24 srvr courieresmtpd: started,ip=[::ffff:138.163.0.38] Jan 25 21:17:28 srvr courieresmtpd:
error,relay=::ffff:138.163.0.38,from=<firs...@navy.mil>,to=<use...@mycompany.org>:
450 Service temporarily unavailable. Jan 25 21:17:28 srvr courieresmtpd: authdaemon: s_connect() failed: Permission
denied Jan 25 21:17:35 srvr courieresmtpd: started,ip=[::ffff:140.211.11.2] Jan 25 21:17:35 srvr courieresmtpd: authdaemon: s_connect() failed: Permission
denied Jan 25 21:17:35 srvr courieresmtpd:
error,relay=::ffff:140.211.11.2,from=<mail...@spamassassin.apache.org>,to=<spam...@mycompany.org>:
450 Service temporarily unavailable.

I also see some messages like this:

Jan 25 19:19:02 srvr courieresmtpd: error,relay=::ffff:127.0.0.1,msg="502 ESMTP
command error",cmd: LKJ Jan 25 19:19:02 srvr courieresmtpd: error,relay=::ffff:127.0.0.1,msg="writev:
Broken pipe",cmd: LKJ Jan 25 20:14:16 srvr courieresmtpd: error,relay=::ffff:66.150.201.153,msg="502
ESMTP command error",cmd: DATA

Jan 25 20:15:02 srvr courieresmtpd: error,relay=::ffff:72.15.222.65,msg="502
ESMTP command error",cmd: DATA

What do I need to do?

The pertinent parts of my esmptd file are:

*********************************************** PATH=/usr/lib/courier/bin:/bin:/usr/bin:/usr/local/bin

SHELL=/bin/sh

ULIMIT=4096

BOFHCHECKDNS="1"

BOFHNOEXPN=0

BOFHNOVRFY=0

NOADDMSGID="1"

NOADDDATE="1"

ESMTP_LOG_DIALOG=0

AUTH_REQUIRED="0"

COURIERTLS=/usr/lib/courier/bin/couriertls

TLS_PROTOCOL=SSL3

TLS_CERTFILE=/usr/lib/courier/share/esmtpd.pem

TLS_VERIFYPEER=NONE

MAILUSER=courier MAILGROUP=courier

PORT=smtp

BLACKLISTS="-block=sbl-xbl.spamhaus.org,BLOCK"

ACCESSFILE=${sysconfdir}/smtpaccess

MAXDAEMONS="40"

MAXPERC="5"

MAXPERIP="5"

PIDFILE=/var/spool/courier/tmp/esmtpd.pid

TCPDOPTS="-stderrlogger=/usr/sbin/courierlogger"

ESMTPAUTH=""

ESMTPAUTH_WEBADMIN="LOGIN CRAM-MD5 CRAM-SHA1 CRAM-SHA256"

ESMTPAUTH_TLS=""

ESMTPAUTH_TLS_WEBADMIN="PLAIN LOGIN CRAM-MD5 CRAM-SHA1 CRAM-SHA256"

ESMTPDSTART="YES" ***************************************************