Printscreen in SMTP

How can I attach a printscreen in a SMTP ?

For example: I want to write an e-mail and in the body I need attach a printscreen.

forum

You asked this the other day in portuguese, did you have problems following that post i sent you there?

yes, I had problems. That didn’t work

Every email client will have their different rules for embedding images, so if you know what your users will be using to read the emails, the better…