Certification expiration date check

I got tired of not having a clear answer when my certs were expiring so I made this little script to help me. You can run it on your workstation or on any Linux/Mac that has uptodate CA's.

#!/bin/bash
clear
echo "SERVER CERTIFICATE EXPIRATION DATES:"
echo "------------------------------------"
server=mail.mattila.eu
echo ""
echo "server = ${server}"
echo ""
echo ""
echo "#### WWW port (client2server) ####"
echo "------------------------------------"
echo " SSL certificate on port 443"
echo |openssl s_client -showcerts -connect $server:443 2>/dev/null | openssl x509 -dates | grep After | sed 's/notAfter=/ Expires = /'
echo ""
echo ""
echo "#### SMTP ports (server2server) ####"
echo "------------------------------------"
echo " TLS certificate on port 25"
echo |openssl s_client -showcerts -connect $server:25 2>/dev/null -starttls smtp | openssl x509 -dates | grep After | sed 's/notAfter=/ Expires = /'
echo ""
echo " SSL certificate on port 465"
echo |openssl s_client -showcerts -connect $server:465 2>/dev/null | openssl x509 -dates | grep After | sed 's/notAfter=/ Expires = /'
echo ""
echo " TLS certificate on port 587"
echo |openssl s_client -showcerts -connect $server:587 2>/dev/null -starttls smtp | openssl x509 -dates | grep After | sed 's/notAfter=/ Expires = /'
echo ""
echo ""
echo "#### IMAP ports (client2server) ####"
echo "------------------------------------"
echo " SSL certificate on port 143"
echo |openssl s_client -showcerts -connect $server:143 2>/dev/null -starttls imap | openssl x509 -dates | grep After | sed 's/notAfter=/ Expires = /'
echo ""
echo " SSL certificate on port 993"
echo |openssl s_client -showcerts -connect $server:993 2>/dev/null | openssl x509 -dates | grep After | sed 's/notAfter=/ Expires = /'
echo ""
echo ""