SMTP (Simple Mail Transfer Protocol) is a communication protocol for sending emails. It manages the transmission of messages between email servers, allowing the transfer of emails across the internet. SMTP facilitates the delivery of emails from the sender's client to the recipient's server, enabling efficient email communication.

How to use

This try’s to get some users

msfconsole
use auxiliary/scanner/smtp/smtp_enum
set rhost <target ip>
run

This sends an email

sendEmail -f <From email> -t <To email> -s <smtp server> -u <message subject> -m <message body>