Skip to content

Delivery Transports Overview

MailFuz provides 8 modular transport engines. Every transport handles MIME-encoding, multipart HTML/plaintext generation, attachment streaming, and cryptographic headers.

Transport Connection Type Speed Typical Cost Best For
SMTP Relay Socket (TLS/SSL) Fast Included in host Universal hosting & private mail servers
Amazon SES REST API v2 Blazing (< 300ms) $0.10 / 1,000 High volume, enterprise, SaaS
SendGrid REST API v3 Very Fast Free tier / Paid Marketing broadcasts & newsletters
Postmark REST API Ultra Fast Paid Critical receipts & password resets
Mailgun REST API Blazing Pay-as-you-go US & EU regional privacy compliance
Brevo REST API v3 Fast 300 free / day Small businesses & European GDPR sites
Resend REST API Blazing Generous free tier Modern developer-first applications
Standby Failover Auto-Switch Immediate Automatic High-availability zero-downtime routing

  1. Go to MailFuz → Settings → General.
  2. Under Active Mailer Engine, select your preferred transport from the dropdown.
  3. Depending on your selection, navigate to the SMTP Relay or API Transports tab to input your credentials.
  4. Click Save Settings, then visit MailFuz → Send Email to send a test message.