[Python] test email credentials

test_email_credentials.py

#!/usr/bin/python

from smtplib import SMTP
from email.MIMEText import MIMEText
 
SERVER      = "<SMTP_server>"
USERNAME    = "<SMTP_user_name>"
PASSWORD    = "<SMTP_password>"
DESTINATION = "<destination_email_address>"
 
try:
    msg = MIMEText('Test message', 'plain')
    msg['Subject']= "Testing credentials"
    msg['From']   = USERNAME
 
    conn = SMTP(SERVER)
    conn.set_debuglevel(1)
    conn.starttls()
    conn.login(USERNAME, PASSWORD)
    try:
        conn.sendmail(USERNAME, DESTINATION, msg.as_string())
    finally:
        conn.close()
 
except Exception, exc:
    sys.exit( "Sending mail failed: %s" % str(exc) ) # give a error message

I find this useful to verify SMTP credentials sent to me by a client.

Modified from code found here: http://stackoverflow.com/questions/64505/sending-mail-from-python-using-smtp