Postfix Architecture Diagrams
Visual references for design reviews, runbooks and training.
Postfix Message Flow
Reusable SVG engineering diagram.
Authenticated Submission Flow
Reusable SVG engineering diagram.
Transport Map Routing
Reusable SVG engineering diagram.
Sender-Dependent Relay
Reusable SVG engineering diagram.
Postfix–Dovecot Authentication
Reusable SVG engineering diagram.
OpenDKIM Signing Flow
Reusable SVG engineering diagram.
Postfix Queue Lifecycle
Reusable SVG engineering diagram.
Postfix Multi-Instance Layout
Reusable SVG engineering diagram.