Postfix Labs
Generate and review configuration locally in your browser.
Postfix main.cf Builder
Generate a conservative baseline main.cf for a relay or mail host.
Postfix master.cf Submission Builder
Generate a submission service block with TLS and SMTP AUTH.
Transport Map Builder
Build transport_maps entries from domain and next-hop inputs.
Sender-Dependent Relay Builder
Generate sender relay and SASL credential map templates.
TLS Policy Map Builder
Generate per-destination outbound TLS policy map entries.
Virtual Alias Map Builder
Create explicit virtual_alias_maps entries and avoid accidental catch-alls.
Header Checks Builder
Draft conservative regexp header checks.
Postfix Queue Capacity Calculator
Estimate queue disk requirements from message rate, size and deferred retention.
Open Relay Security Audit
Generate a review checklist from relay and submission settings.
Postfix Configuration Diff
Compare two postconf -n snapshots locally in the browser.
Postfix Map Syntax Validator
Perform basic local checks on map source lines before postmap.
Postfix Upgrade Planner
Create a controlled Postfix upgrade and validation checklist.