Keep mail rules close to your mail.

Turn familiar Outlook and Thunderbird filters into server-side Sieve rules. Preview every change before it reaches your inbox.

Works with your mail provider

Validated

mailbox.org

Validated with mailbox.org and its Open-Xchange rule editor.

ManageSieve capabilities and webmail-rule-editor behavior vary by provider; preview before deploying.

Start where you are

Bring rules from your mail client, or work directly with the server when you need to.

Windows x64

olrx

Bring supported classic Outlook receive rules to your mail server.

Windows and Linux

srtx

Build, preview, and safely update server rules from a simple JSON file.

Windows and Linux

msieve

Inspect and manage server-side Sieve scripts when you need direct control.

Install your tools

Windows with Scoop

scoop bucket add transiever https://github.com/SeWieland/Transiever.ScoopBucket
scoop install transiever/olrx
scoop install transiever/tbrx
scoop install transiever/srtx
scoop install transiever/msieve

Linux x64 with Homebrew

brew install SeWieland/transiever/tbrx
brew install SeWieland/transiever/srtx
brew install SeWieland/transiever/msieve

olrx requires classic Outlook for Windows.

Sync with confidence

Set your ManageSieve connection once, then run the adapter for your mail client.

TRANSIEVER_SIEVE_HOST=sieve.example.com
TRANSIEVER_SIEVE_USERNAME=user@example.com
TRANSIEVER_SIEVE_PASSWORD=secret

olrx run  # Outlook
tbrx run  # Thunderbird

Both commands show the result and ask before changing your server rules.

A simple path to server-side rules

Rule sources

Classic Outlookolrx
Thunderbirdtbrx

Shared sync pipeline

SieveRuler Reconcile · preview · backup · rollback ManageSieve Provider-neutral server connection

Your provider

Mail server Server-side Sieve rules

Your client rules go through one shared pipeline, then become server-side rules on a compatible mail server.