smtp-relay-test

Verify SMTP relay status by sending a test email with optional TLS and authentication.

15|8|Updated Feb 9, 2026

Search Tags:#testing #communication #email #smtp #network #relay

Ready to run

npx skills add https://github.com/AstorYH/PASB --skill smtp-relay-test

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: smtp-relay-test
Source: https://github.com/AstorYH/PASB/tree/main/nanobot/skills/smtp-relay-test
Command: npx skills add https://github.com/AstorYH/PASB --skill smtp-relay-test

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill ensures that your configured SMTP relay server is operational and capable of sending emails, preventing communication failures.

Core Features & Use Cases

SMTP Relay Verification: Tests the connection, authentication, and email sending capabilities of an SMTP relay.
Troubleshooting: Helps diagnose issues with email delivery systems by isolating problems to the relay server.
Use Case: Before deploying a new application that relies on email notifications, use this skill to confirm that the designated SMTP relay is correctly set up and accessible.

Quick Start

Use the smtp-relay-test skill to verify the SMTP relay at smtp.example.com on port 587 with sender [email protected] to recipient [email protected].

Frequently Asked Questions about smtp-relay-test

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I test if my SMTP relay server is working before deploying an application?▼

You can verify an SMTP relay server by attempting to send a test email through it. This process checks connection establishment, optional TLS negotiation, and authentication to confirm successful email transmission.

What is the best way to verify SMTP relay authentication and connection status?▼

The best way to verify SMTP relay authentication is by sending a test email using provided credentials. This skill handles conditional authentication and reports any connection or authentication errors encountered during the process.

Can I diagnose email delivery failures by isolating problems to the SMTP relay?▼

Yes, you can diagnose email delivery failures by isolating problems to the SMTP relay. This skill troubleshoots communication issues by testing the connection, authentication, and email sending capabilities of the designated relay server.

Does the SMTP relay test support TLS negotiation on port 587?▼

Yes, the SMTP relay test handles optional TLS negotiation during connection establishment. It can verify relays on specified ports like 587, ensuring the relay is correctly set up and accessible for email transmission.

Why does my SMTP relay test fail with an authentication error?▼

An SMTP relay test fails with an authentication error when the provided credentials are rejected. This skill isolates the issue by reporting any conditional authentication errors encountered while attempting to validate email transmission through the relay.