Fastmask

Fastmask is the companion app for Fastmail users who rely on masked email aliases. Connect your Fastmail account using secure Fastmail login to instantly create, manage, and disable aliases—keeping your real address private, reducing spam, and staying in control of where your messages go.

• Secure Fastmail login
• Create aliases instantly, including custom email prefixes.
• Set local expiration dates for aliases.
• Enable or disable aliases anytime to stop unwanted mail.
• Bulk actions: manage multiple aliases at once.
• Edit existing alias descriptions.
• View, search, and open target domains directly from the list.
• Tap an alias to quickly copy it—fast and accessible.
• Safari Web Extension: Create masked email aliases directly from Safari and send them to the app.
• Create aliases via the Shortcuts app for automation and one-tap workflows.
• Manage multiple Fastmail accounts in one place with a dedicated sidebar.
• Optimized layout for both iPhone and iPad.
• Privacy-first design: no trackers, no data sharing, no selling.

Upgrade to unlock unlimited aliases, full multi-account support, and all advanced features—seamlessly integrated with Fastmail.