Create a Private Email Alias with Quetta Email Mask
Generate a random @quetta.email address on Android, use it instead of your regular email, and receive messages in Quetta’s built-in Email Mask Inbox.

Quetta Email Mask lets a signed-in user generate up to five random @quetta.email addresses to use instead of a regular email address. Messages sent to a generated address appear in its built-in Quetta Inbox on Android. If you delete a mask, you can create another, up to five active masks at a time.
Availability may depend on your Quetta version and platform. This page describes the Android feature.
What is Quetta Email Mask?
Quetta Email Mask is a browser-integrated email masking feature for signed-in Quetta users on Android. It creates a random address on the quetta.email domain, lets you copy that address for use on websites, and provides an Inbox inside Quetta for messages sent to the mask. A user can keep up to five active masks.
Quetta Email Mask does not work by forwarding messages to your Gmail, Outlook, or another personal inbox. The message is received in the Quetta Email Mask Inbox. That distinction matters when comparing Quetta with forwarding-based email alias services.
If you want the general definition before choosing a tool, read what an email alias is and how email masking works.
How Quetta Email Mask works
The basic workflow has five parts:
Sign in to Quetta and open Quetta Email Mask on Android.
Select Create new mask and let Quetta generate a random
@quetta.emailaddress.Copy the mask for a website form. If Quetta Autofill is enabled, tapping a supported username or email field also displays the autofill bar.
Use the masked address where a website asks for an email.
Return to the built-in Inbox to read messages sent to the mask.
The website receives the generated address, not the regular email address you may use for personal communication. The masked address becomes the contact point for that sign-up.
1. Sign in and open Quetta Email Mask
Open Quetta on your Android device and select Quetta Email Mask. Creating a mask requires a signed-in Quetta session. If you are signed out and select Create new mask, Quetta takes you to sign-in. After signing in, use Back to return to Email Mask.
2. Generate a random @quetta.email address
Quetta automatically creates a random address. You can copy the generated address without composing a new address or connecting a custom domain.
You can keep up to five active email masks. When you reach the limit, Quetta displays “Max 5 email masks.” Delete an existing mask before creating another.
3. Use the address on a website
Paste the address into an email field when creating an account, subscribing to updates, requesting information, or completing another online form.
If Quetta Autofill is enabled, tapping a supported username or email-type input field displays the Quetta autofill bar. Check the address offered before submitting the form.
4. Read incoming messages in Quetta
When a message is sent to the mask, open the Email Mask Inbox in Quetta to read it. Messages do not need to pass through your regular inbox first.
5. Delete a mask you no longer need
You can delete an existing mask. Quetta asks you to confirm because deletion is permanent and includes the Inbox connected to that mask. Before deleting it:
Change the email address on any website account that still uses the mask.
Save any message or information you may need later.
Confirm that the mask is not being used for sign-in, verification, or password recovery.
Complete the delete confirmation.
After deletion, the address no longer counts toward the five-mask limit, so you can create another mask.
When should you use an email mask?
An email mask is most useful when a website needs a working address but does not need to know the regular address you use elsewhere.
Common examples include:
Signing up for a website you are trying for the first time
Joining a newsletter or mailing list
Creating an account for an online shop
Requesting a download, promotion, or product update
Separating routine website messages from personal email
An email mask is not automatically the right choice for every account. For essential services, consider how you would recover the account later and whether you will need long-term access to the address. Mozilla makes a similar distinction in its guidance for email masks, advising users to prefer a regular address for important identity, medical, legal, travel, or financial messages. See Mozilla’s official email mask guidance.
Email Mask, email alias, and masked email address
These terms overlap, but providers may implement them differently.
Term | General meaning | How it applies to Quetta |
|---|---|---|
Email mask | An address used instead of a regular email address | Quetta generates a random |
Email alias | An additional address used to receive email | Quetta Email Mask functions as an alternate receiving address |
Masked email address | Another name for an address that conceals a regular address | The generated |
Email forwarding | Messages are routed to another inbox | Quetta instead displays received messages in its built-in Inbox |
Disposable email | A short-lived address or inbox | Do not assume a Quetta mask is disposable; use it according to Quetta’s current product behavior and policies |
The word “alias” does not describe one universal technical design. Google Workspace aliases route messages to a primary Workspace inbox, Apple Hide My Email forwards messages to an associated personal address, and Firefox Relay describes its masks as forwarding addresses. Quetta uses a built-in Inbox instead. You can compare these patterns in our complete guide to email aliases.
Why use a separate address for website sign-ups?
Reveal less of your regular contact identity
Using a generated address means the website does not receive the regular email address you use elsewhere. This reduces the number of services that hold that specific identifier.
Keep website messages in a separate place
Messages sent to the mask appear inside Quetta Email Mask. That creates a separate place for email connected to selected browsing and sign-up activity.
Make the privacy choice while browsing
Because Email Mask is built into the Android browser, you can generate an address and return to the website without setting up a separate custom mailbox.
Limit the effect of sharing one address everywhere
An email mask cannot stop a website from sending messages to the address you gave it, and it does not prevent every form of tracking. Its narrower purpose is to keep your regular address out of that particular exchange.
What Quetta Email Mask does—and does not do
Clear boundaries make it easier to decide whether this feature fits the account you are creating.
Quetta Email Mask does
Generate a random address on the
quetta.emaildomainAllow up to five active masks per signed-in user
Give you an address to use instead of your regular email
Receive messages sent to the mask in a built-in Quetta Inbox
Display the Quetta autofill bar on supported username and email fields when Quetta Autofill is enabled
Permanently delete a mask and its Inbox after confirmation
Provide the workflow inside Quetta on Android
Do not assume Quetta Email Mask will
Forward messages to Gmail, Outlook, or another external inbox
Create a Gmail or Microsoft account alias
Provide a custom-domain mailbox
Function as a temporary inbox that automatically expires
Replace a password manager, unique password, or multi-factor authentication
Make an online account anonymous after you provide other identifying information
Guarantee acceptance by every website
Email masking protects one identifier: the email address you would otherwise share. Websites may still receive information you submit, observe account activity, or use other permitted technical signals. For broader browsing controls, explore Quetta Privacy Guard.
Email Mask vs a disposable email address
An email mask and a disposable email address can both keep a regular address out of a form, but the expected use is different. Disposable inboxes are commonly chosen for short-lived access. An email mask is better understood as an alternate contact address whose behavior depends on the provider.
Before choosing either option, ask:
Will I need to reset this account’s password later?
Could this service send an important receipt or security notice?
How long will I need access to the address?
Where will incoming messages appear?
Can the website reject this type of address?
See the full comparison in Email Alias vs Disposable Email Address.
Use Email Mask as one part of account privacy
An alternate address is most useful when combined with basic account security:
Use a unique password for every important account.
Store passwords in a trusted password manager.
Enable multi-factor authentication where available.
Review what personal information the website actually requires.
Keep account recovery information current.
Treat unexpected links and attachments cautiously, even when a message reaches a masked address.
An email mask can reduce exposure of your regular address. It cannot determine whether a sender or website is trustworthy.
Try Email Mask on Android
Quetta brings address generation, autofill, and incoming messages into the browser workflow. Sign in, generate up to five random @quetta.email addresses, use one on a supported website form, and check the built-in Inbox when a message arrives.
Prefer to understand the category first? Read What Is an Email Alias?
Frequently asked questions
Does Quetta Email Mask forward messages to my regular inbox?
No. Messages sent to a Quetta Email Mask appear in the built-in Quetta Inbox. The feature should not be described as forwarding messages to Gmail, Outlook, or another personal inbox.
What address does Quetta Email Mask create?
Quetta generates a random address on the quetta.email domain. You can copy that address and use it where a website asks for an email address.
How many Quetta email masks can I create?
You can keep up to five active email masks. When five masks already exist, Quetta displays “Max 5 email masks.” If you permanently delete one mask and its Inbox, you can create another.
Do I need to sign in to create a mask?
Yes. If you are signed out and select Create new mask, Quetta takes you to sign-in. After signing in, use Back to return to Email Mask and continue.
Can Quetta fill a masked email address into a website form?
When Quetta Autofill is enabled, tapping a supported username or email-type input field displays the Quetta autofill bar. Check the address offered before submitting the form.
What happens when I delete a masked email?
Deletion is permanent and includes the Inbox associated with that mask. Quetta shows a confirmation dialog before deleting it. Change the email on connected accounts and save anything important before confirming.
Is Quetta Email Mask the same as an email alias?
It serves a similar purpose: providing an alternate address instead of exposing a regular one. However, implementations differ. Some alias services forward messages to another inbox, while Quetta receives messages in its own built-in Inbox.
Is Quetta Email Mask a disposable email service?
Quetta Email Mask should not be presented as an automatically expiring temporary inbox. If you need an address for future account recovery or important messages, first confirm that the address and Inbox fit the expected length and importance of that account.
Can I use a masked email address on every website?
Not necessarily. A website may reject unfamiliar domains or require a particular address for identity verification. Use a regular, long-term address when reliable account recovery or formal identity matching is essential.
Does using an email mask stop spam?
An email mask does not prevent a sender from emailing the masked address. Its benefit is separation: the sender does not receive your regular address, and messages connected to the mask remain separate from that regular inbox. Read more about using email aliases to manage spam exposure.
Does an email mask make me anonymous?
No. It conceals the regular email address you would otherwise provide, but a website may still know information you submit or associate activity with an account, device, payment, or other identifier.