← All Kali Issues
SET

Email delivery failed

N Network High

🔴 Error Message

SMTP connection failed for phishing email

📖 What This Means

SMTP server rejecting connection or authentication.

🔧 Step-by-Step Fix

  1. Use authenticated SMTP: Gmail app password
  2. Check SMTP settings: server, port, TLS
  3. Use: sendmail or postfix locally