1. SMTP Authentication / Cyrus-SASL Configuration

1.1 Install CYLUS-SASL<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

1.2 Configure CYLUS-SASL to support SMTP Authentication

1.2.1 Configure /etc/mail/sendmail.mc to support SMTP authentication:

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Uncomment this: TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN'')dnl define(`confAUTH_MECHANISMS'', ` GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN'')dnl ... DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA,M=Ea'')dnl

1.2.2 New /usr/lib/sasl2Sendmail.conf: [root@host sasl2]# vi /usr/lib/sasl2/Sendmail.conf

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pwcheck_method:saslauthd

1.3 Restart SASL and Check installation Start SASL with pam: [root@host sbin]# service saslauthd stop Stopping saslauthd: [ OK ] [root@host sbin]# saslauthd -a shadow pam Test installation: [root@host sasl2]# cat /usr/lib/sasl2/Sendmail.conf

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pwcheck_method:saslauthd [root@host sasl2]# service saslauthd restart Stopping saslauthd: [ OK ] Starting saslauthd: [ OK ] [root@host sasl2]# telnet mail.host.com 25 Trying 10.56.233.59... Connected to mail.host.com (192.168.1.5). Escape character is ''^]''. 220 host.com ESMTP Sendmail 8.13.8/8.13.8; Wed, 17 Mar 2010 23:12:20 0800

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ehlo localhost 250-host.com Hello host [192.168.1.5], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-AUTH LOGIN PLAIN 250-DELIVERBY 250 HELP quit

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221 2.0.0 host.com closing connection Connection closed by foreign host. [root@host sasl2]# sendmail -d0.1 -bv root | grep SASL NETUNIX NEWDB <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />NIS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS

2. Configuration for SSl

2.1 vi /etc/pki/dovecot/dovecot-openssl.cnf

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3 [ ] STREAM CONNECTED 55559933 unix 3 [ ] STREAM CONNECTED 55559932 /tmp/orbit-root/linc- 1846-0-c008ce5556ba unix 3 [ ] STREAM CONNECTED 55559931 unix 3 [ ] STREAM CONNECTED 55556993

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