smtp.py

#!/usr/bin/env python3
 
import smtplib
import argparse
 
def testmail(username, password, server, deliveryaddr):
    header = "From: %s\r\nTo: %s\r\nSubject: SMTP Test\r\n\r\nTest Successful" % (username, deliveryaddr)
     
    try:
        server = smtplib.SMTP(server)
        server.login(username, password)
        server.sendmail(username, deliveryaddr, header)
    except Exception as e:
        print("An Error Occurred! %s" % e)
    else:
        print("Test Successful")
 
if __name__ == '__main__':
 
    parser = argparse.ArgumentParser()
    parser.add_argument('-u', '--user', required=True,
            help="Username for SMTP Login")
    parser.add_argument('-p', '--password', required=True,
            help="Password for SMTP Login")
    parser.add_argument('-s', '--server', required=True,
            help="SMTP Server url")
    parser.add_argument('-d', '--dest', required=True,
            help='Destination Email Address')
 
    args = parser.parse_args()
 
    testmail(args.user, args.password, args.server, args.dest)