curl --insecure -v $1 2>&1 | awk 'BEGIN { cert=0 } /^\* SSL connection/ { cert=1 } /^\*/ { if (cert) print }'
openssl s_client -connect webmail.reditus.pt:443
openssl s_client -connect 172.27.28.2:636

openssl s_client -connect webmail.reditus.pt:443 | openssl x509 -noout -dates
echo | openssl s_client -connect dados.reditus.pt:443 2> /dev/null | openssl x509 -noout-dates