check_ssl.py

import requests
import smtplib


user = "yourusername"
password = "yourpass"
fromaddr = "user@gmail.com"
toaddr = "sysadmin@gmail.com"
smtpserver = "smtp.server"
port = 587
hosts = [ "https://host1/", "https://host2", "https://host3", "https://www.google.com"]

def check_ssl(url):
    try:
        req = requests.get(url, verify=True)
    except requests.exceptions.SSLError:
        sendmail(url)

def sendmail(host):
    msg = "\r\n".join([
        "From: " + fromaddr,
        "To: " + toaddr,
        "Subject: SSL Error at " + host,
        "",
        "check ssl certificate at "+ host
        ])

    server = smtplib.SMTP(smtpserver, port)
    server.ehlo()
    server.starttls()
    server.ehlo()

    server.login(user,password)
    server.sendmail(fromaddr, toaddr, msg)
    server.quit()

if __name__ == "__main__":
    for a in hosts:
        check_ssl(a)