I'm on RHES 4.x

I downloaded 2 dovecot RPM packages from http://packages.sw.be/dovecot/

dovecot-1.0.13-1.el4.rfx.i386.rpm 13-Nov-2010 22:15 1.8M RHEL4 and CentOS-4 x86 32bit and dovecot-0.99.13-1.2.el4.test.i386.rpm 21-Feb-2005 16:57 693K RHEL4 and CentOS-4 x86 32bit

The first rpm fails with error below : # rpm -i ./dovecot-1.0.13-1.el4.rfx.i386.rpm warning: ./dovecot-1.0.13-1.el4.rfx.i386.rpm: V3 DSA signature: NOKEY, key ID 6b8d79e6 error: Failed dependencies: libmysqlclient.so.14(libmysqlclient_14) is needed by dovecot-1.0.13-1.el4.rfx.i386

I have a hard time trying to locate an rpm that contains libmysqlclient.so.14 & have no luck : # rpm -i ./mysql-libs-5.1.42-4.el6.i686.rpm warning: ./mysql-libs-5.1.42-4.el6.i686.rpm: V3 RSA/MD5 signature: NOKEY, key ID f21541eb error: Failed dependencies: libcrypto.so.10 is needed by mysql-libs-5.1.42-4.el6.i686 libssl.so.10 is needed by mysql-libs-5.1.42-4.el6.i686 rpmlib(FileDigests) <= 4.6.0-1 is needed by mysql-libs-5.1.42-4.el6.i686 rtld(GNU_HASH) is needed by mysql-libs-5.1.42-4.el6.i686 rpmlib(PayloadIsXz) <= 5.2-1 is needed by mysql-libs-5.1.42-4.el6.i686

Then I installed the 2nd dovecot rpm successfully but its filename indicated it's a "test" version :

# rpm -i ./dovecot-0.99.13-1.2.el4.test.i386.rpm warning: ./dovecot-0.99.13-1.2.el4.test.i386.rpm: V3 DSA signature: NOKEY, key ID 6b8d79e6

# /etc/init.d/dovecot start Starting IMAP daemon (dovecot): [ OK ]

Q1: Is the test version rpm of dovecot reliable? It's only half the size of the other rpm (that I was not able to install)

Q2: Kindly assist me to resolve the 1st rpm issue : let me know where I can download the dependencies etc

Q3: Lastly, kindly point me to a simple doc that tells me how to do basic setup of dovecot & create simple mailbox accounts. I'm a complete newbie to dovecot & postfix. Have some Linux know-how