def smtp_gmail():
    username = "mmera email"
    password = "mera password"
    smtp_server = "smtp.gmail.com:587"
    email_from = "shantanusaxena135@gmail.com"
    email_to = "shantanu.saxena@dusragmail.com"
    mystring = 'CONTENT'
    email_body = string.join((
        "From: %s" % email_from,
        "To: %s" % email_to,
        "Subject: This is my subject line!",
        "",
        "This is my message that can also have a %s" % (mystring),), "\r\n"
    )

    server = smtplib.SMTP(smtp_server)
    server.starttls()
    server.login(username, password)
    server.sendmail(email_from, email_to, email_body)
    server.quit()