Feature Request: Implement sending Mails over SMTP

[kruemelro]

Hi, i've seen that the nodemailer module is allready installed. So it would be great if its possible to send mails over SMPT, not only unsend. I think its not a big change, but i don't have the skill to do it by my own :-).

Here is the example code from the nodemailer page: https://nodemailer.com/about/#example