Sending Mail using Powershell

Turns out, Powershell can be used to send emails through harnessing the power of C#. I made this script as a POC as to show how far .Net and Powershell have come.

Should work on all platforms that support Powershell.

sendmail.ps1

Usage

Copied from the script.

echo 'Hi! it going? Testing my Powershell script.' | \
  smtp_host=smtp.gmail.com \
  smtp_username=example@gmail.com \
  smtp_password='0123456789' \
  mail_from=alice@gmail.com \
  mail_to=bob@example.com \
  mail_subject='Sent using Powershell' \
   sendmail.ps1 \
     doc.pdf

Few Tips

Password

Services like Gmail will require you to get a separate password for external apps. Google calls this "App password". Refer to the links below.

• https://support.google.com/accounts/answer/185833
• https://support.google.com/mail/answer/7126229

Even if the normal password for the account can be used, a separate password should always be used for program access. Always check if your email provider supports this.

TLS

Most services will refuse to serve on unsecure connections. Use smtp_tls=O only as the last resort.

smtp_tls_cert is for TLS CN SASL authentication. if authenticating using this method, smtp_username and smtp_password are not required.

CC and More

Didn't think about CC and all the advanced composition. Feel free to add more feature to the script that is already monstrous!