#mkdir /etc/mail/certs
#cd /etc/mail/certs
#openssl req -new -x509 -keyout cakey.pem -out cacert.pem -days 1865
#openssl req -nodes -new -x509 -keyout sendmail.pem -out sendmail.pem -days 1460
#chmod 600 sendmail.pem
#openssl x509 -noout -text -in sendmail.pem
PART-1 Configure complete sendmail server in rhel.
PART-2 Creating the Certificate for secured communication(dovecot).
PART-3 Fetchmail Sample file to download the mail.
PART-4 Installation of CLAMAV antivirus.
PART-5 Mailscanner quick install notes.
PART-6 Installation instruction MailWatch & SpamAssassin.