Sievesmith

Sievesmith is a native app for iPhone, iPad and Mac for editing, validating and managing Sieve mail filter scripts on your mail server via ManageSieve.

Sievesmith on the Mac: the scripts of a mail account next to the editor with syntax highlighting

Coming soon to the App Store.

Features

Editor with syntax highlighting and validation, both locally and on the server (CHECKSCRIPT)
Works with ManageSieve servers such as Dovecot/Pigeonhole, Cyrus and Stalwart
Multiple servers
Offline drafts with an upload queue
Three-way merge when a script was changed on the server
ZIP export and backup
Optional Git mirror of your scripts (HTTPS or SSH)
Servers and settings sync across your devices via iCloud
No tracking, no ads, no data collected by the developer

Platforms

iPhone, iPad and Mac (iOS, iPadOS and macOS 27).

Pricing

Try all features free for 14 days. After that, choose an auto-renewable subscription in the App Store:

Individual: €2.99 per year
Family: €5.99 per year, shared with up to six people via Family Sharing

Without a subscription you can use one server and edit, validate and export scripts. Uploading, script management, multiple servers and the Git mirror require a subscription.