yum install fam
/etc/rc.d/init.d/courier-imap restart
service courier-authlib restart
service courier-imap restart
yum install fam
/etc/rc.d/init.d/courier-imap restart
netstat -an|grep 143|grep LISTEN
Solution : Install libltdl or locate following files on server
cp /old/usr/lib/libltdl.so.3 /usr/lib/libltdl.so.3
cp /old/usr/lib/libltdl.so.3.1.1 /usr/lib/libltdl.so.3.1.1
cp /old/usr/lib/libltdl.so /usr/lib/libltdl.so
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