Fastmask

Fastmail Masked Email

Fastmask: Fastmail Masked Email for iPhone and iPad.

Fastmask is an app for iPhone and iPad that connects to your Fastmail account to create and manage Masked Email aliases. Keep your real email address private and enable, pause, or delete aliases for individual services. An active Fastmail account is required.

Download on the App Store See how it works
  • Fastmail sign-in, no separate inbox
  • Create, pause, or remove aliases per service
  • Full control over delivery and privacy

Core Features

Fastmail Masked Email Features for iPhone and iPad

Fastmask helps you create, organize, and control private Fastmail aliases with fast workflows and a privacy-first design.

New

Secure Fastmail login

Add accounts with secure Fastmail login for a trusted setup flow.

Create Masked Email aliases instantly

Generate a new Masked Email alias in seconds and choose custom email prefixes for clearer organization.

Set local expiration dates

Define local expiration dates for aliases so temporary sign-ups turn off on your schedule.

Enable or disable aliases anytime

Stop unwanted mail fast by toggling aliases on or off whenever you need.

New

Bulk actions for aliases

Enable, disable, delete, restore, or set expiration for multiple aliases at once.

Edit alias descriptions anytime

Keep aliases understandable by updating descriptions as your usage changes over time.

New

Search and open target domains

Find aliases quickly and open associated website domains directly from the list.

Sort by email or description

Reorder aliases by email address or description to review and clean up faster.

Tap to copy aliases instantly

Copy any alias with a single tap using a fast and accessible interaction flow.

Apple Shortcuts automation support

Create aliases from the Shortcuts app for one-tap actions and repeatable automation workflows.

New

Safari Web Extension support

Create masked email aliases directly in Safari and send them to the app instantly.

Manage multiple Fastmail accounts

Handle aliases for more than one Fastmail account in one place with a dedicated sidebar.

Optimized for iPhone and iPad

Use a layout tuned for both compact iPhone screens and larger iPad views.

Privacy-first by design

No trackers, no data sharing, and no selling of personal data.

How It Works

Three simple steps

Create an alias

Generate a masked email for a specific website, app, or subscription.

Use it everywhere

Sign up with your mask while your real inbox stays private in the background.

Toggle when needed

Mute or disable any alias the moment you no longer trust a sender.

Trust

Built for privacy-minded iPhone and iPad users

  • No data sales

    Fastmask does not sell personal data.

  • No ad trackers

    The app and website do not run ad-tech tracking layers.

  • Data minimization

    Only data needed for core functionality and support is processed.

  • Fastmail compatible

    Built for Fastmail account workflows and quick alias control.

FAQ

Common questions

What is Fastmask?

Fastmask is an iPhone and iPad app for creating and managing Fastmail Masked Email aliases.

Do I need a separate inbox?

No. Fastmask manages aliases connected to your Fastmail account. You continue using your Fastmail inbox.

Do I need Fastmail?

Yes. Fastmask requires an active Fastmail account.

How does Fastmask work with Fastmail Masked Email?

Fastmail provides Masked Email aliases. Fastmask is an app for creating and managing those aliases on iPhone and iPad, using your Fastmail account. See Fastmail help.

What happens to my data?

Fastmask is built with data minimization. No data sales, no ad trackers.

Can I disable aliases anytime?

Yes. You can disable aliases at any time to stop unwanted mail.

Is Fastmask available on iPad?

Yes. Fastmask is available on both iPhone and iPad.

Where can I get support?

Use the contact details in the Imprint section.

Support

Questions, feedback, or issues: use the contact details in Imprint.

Fastmail Masked Email docs: fastmail.com/features/masked-email.