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MailFuzMailFuz FAQ & Docs

SMTP Relay Configuration

The SMTP Relay transport connects your WordPress site directly to any standard mail server, including Google Workspace, Microsoft 365, Zoho Mail, or private cPanel/Plesk servers.

Configuration Steps

Section titled “Configuration Steps”
  1. In your WordPress admin, go to MailFuz → Settings → SMTP Relay.
  2. Fill in your server credentials:
    • SMTP Host: The hostname of your mail server (e.g. smtp.gmail.com, smtp.office365.com).
    • Encryption: Choose TLS (STARTTLS) (recommended) or SSL.
    • SMTP Port:
      • Port 587 for TLS / STARTTLS.
      • Port 465 for SSL.
      • Port 2525 for alternate relay environments.
    • Authentication: Check Yes if your server requires username and password.
    • SMTP Username: Your full email address or SMTP user key.
    • SMTP Password: Your password or App-Specific Password (required for Google/Microsoft 2FA accounts).
  3. Click Save SMTP Settings.

Verifying Connection

Section titled “Verifying Connection”

Under System Status & Diagnostics, use the SMTP Socket Connection Test tool. MailFuz opens an immediate socket handshake, tests TLS encryption negotiation, and outputs the raw server response to diagnose firewall blocks or authentication errors.