SMTP Connector

01. Overview

• Plugin Name: SMTP Connector
• Category: Communication / Email
• Authentication: Managed by Mekari Platform

02. Key Features

• Connect to external SMTP servers
• Support for TLS and SSL encryption
• SMTP authentication support
• HTML-only email content for consistent rendering
• Easy configuration via request headers
• Compatible with most SMTP providers

03. Supported Use Cases

• Transactional emails
• Notification emails
• Workflow-triggered emails
• Integration with third-party email services

04. Important Notes

• The body field must contain valid HTML. Plain text is not supported
• Ensure the from email address is allowed by your SMTP provider
• Use App Passwords when available for better security
• Port 587 with TLS is recommended for most providers

05. Security Considerations

• Store SMTP credentials securely
• Avoid using personal email accounts for production workloads
• Limit SMTP access to trusted workflows only

06. Compatibility

• Gmail
• Outlook / Office 365
• Amazon SES
• Mailgun
• SendGrid (SMTP)
• Custom SMTP servers

07. Troubleshooting

• Authentication failed: Verify SMTP username and password
• Connection timeout: Check host, port, and firewall settings
• Email not delivered: Ensure sender domain is authorized by the SMTP provider

08. Summary

The SMTP Connector Plugin provides a simple and reliable way to send HTML emails using external SMTP servers within Officeless workflows, while maintaining full control over security and delivery.