hot to send E-Mail in RB411 ?

RouterOS Beginner Basics
1

Hello,
I want to config my router to send mail
what did I do wrong?

address: 173.194.78.108
port: 25
from: Danny
user: Danny123451@gmail.com
password: *******

but whenever I want to send E-Mail , I get:

Error sending e-mail: invalid FROM address

2

From needs to be a valid email address.

3

thanks !