Why an email alias is my secret weapon for safer online shopping

We’re conditioned to think our email address is harmless. Most of us think it’s just an ID, a way to get receipts and shipping updates, but that’s not it.

Your email is the skeleton key to your online identity. It’s what companies use to build behavioral profiles, target ads, link purchases, and sometimes worse, facilitate fraud after a breach. And when you reuse the same email address everywhere, you make that key universal.

To keep things private, I use an alias for online shopping to stay anonymous, cut down on spam, and more. Let’s discuss what aliases are, why they matter, and how they quietly turn the tables in your favor.

How email aliases help you stay anonymous online

Each time you enter your main email on a shopping site, you give that company a lasting way to connect your behavior across different platforms, devices, and timeframes. They might hash or encrypt your email, but the behavioral patterns remain. You can still be tracked, but aliases interrupt that chain.

Instead of sharing my actual email address, I create a unique one for each website. The emails still reach me through forwarding, but the company never sees my real address. That small change prevents them from linking my activity with other accounts or sites. It is not a perfect solution, but it adds just enough friction to disrupt the tracking systems.

Every alias I use becomes a kind of tracker. If one starts getting spam, I know which site sold or lost my data. Most people don’t know where the breach happened, they just assume “it happens.” I take a different approach. When an alias starts getting unwanted emails, I do not try to unsubscribe or set up filters or waste time guessing. I simply disable the alias, and the problem is gone.

Stop companies from tracking you with email aliases

The average e-commerce site uses between 15 and 30 third-party scripts, analytics trackers, ad pixels, behavioral beacons, according to a study. Even if the site itself is honest, its stack probably isn’t. Your email passes through layers of infrastructure, mailing tools, CRM platforms, shipping plugins. And all it takes is one misconfiguration or a careless developer for your data to end up in the wrong hands.

An alias reduces the blast radius. If the site gets breached your core identity remains untouched.

Aliases don’t just protect privacy, they improve behavior. When I started using them, I found myself thinking more clearly about where I was signing up and why. The mental pause required to generate a new alias made me more deliberate. And it gave structure to the mess. I could set rules like all product warranties go to products@myalias.com, all newsletters to news@myalias.com.

How to create an alias using Gmail

Gmail doesn’t allow you to create a completely separate alias, but it offers workarounds using “+ addressing” or by adding dots to your existing email address. However, these methods don’t prevent an unscrupulous sender from seeing your primary address, so exercise caution when using them with untrusted correspondents. Follow the steps below to get started:

Option 1: Create an alias using the “plus (+) trick”

Use your existing Gmail address and add a “+” followed by any keyword before “@gmail.com.”

Example: If your email is yourname@gmail.com, you can use:

• yourname+work@gmail.com
• yourname+newsletters@gmail.com
• yourname+shopping@gmail.com

No additional setup is needed—just start using this alias when signing up for services or sharing your email.

Option 2: Create an Alias Using the “Dot (.) Trick”

Gmail ignores dots (.) in email addresses, so you can create variations of your email:

Example: If your email is yourname@gmail.com, you can use:

• your.name@gmail.com
• y.o.u.r.n.a.m.e@gmail.com
• yo.urn.ame@gmail.com

All variations will deliver emails to your main inbox automatically.

How to Create an Alias in Outlook.com

Outlook.com allows you to create additional email addresses (aliases) that are linked to your primary account. Emails sent to an alias will arrive in your primary inbox, and you can send messages using the alias as well.

Example:

If your primary email is johnsmith@outlook.com, you can create an alias like john.smith123@outlook.com. Emails sent to john.smith123@outlook.com will still go to johnsmith@outlook.com, but you can choose to send emails using either address.

Steps to Create an Alias:

• Sign in to your Outlook.com account.
• Click the gear icon in the upper-right corner to open Settings.
• Scroll down and select View all Outlook settings.
• Navigate to Mail
• Then click Sync email.
• Click Manage or choose a primary alias under Account alias.
• Select Add email and follow the prompts to create your new alias.
• Choose whether to create a new Outlook.com email as an alias or use an existing email (non-Outlook) as an alias.
• Click Add alias to confirm.

Once added, you can send emails using your alias by selecting it in the “From” field when composing a new message.

Important limitations to note:

• You can add up to 10 aliases in total
• There’s a limit of 10 new aliases that can be created in one year
• You can only add two aliases per week
• Existing Hotmail, Live, Outlook.com, and MSN addresses can’t be added as aliases
• Aliases can only contain letters, numbers, dots (.), underscores (_), or hyphens (-)
• It’s no longer possible to create new aliases with @hotmail, @live.com, or @msn.com domains

HOW TO REMOVE YOUR PRIVATE DATA FROM THE INTERNET

How to create an alias using your Apple ID

Apple allows you to create up to three email aliases through iCloud. These aliases can be used for specific purposes, helping you manage your inbox effectively. Here’s how to create one:

• Go to icloud.com/mail and sign in to your Apple Account if necessary.
• Click the gear icon at the top of the Mailboxes list, then choose Settings.
• Click Account, then click Add Alias.
• Provide the requested information:
  • Alias Address: Enter the text to create your alias (e.g., alias@icloud.com). The alias must contain between 3 and 20 characters.
  • Label: Assign a label for the alias. Aliases are listed alphabetically by their labels.
  • Full Name: Enter the name that will appear in the From field of emails you send using this alias.
• Click Create to finalize the alias.
• Once created, any email sent to this alias will be forwarded to your primary iCloud email address. For example, if your primary email is yourname@icloud.com and you create an alias shopping@icloud.com, any emails sent to shopping@icloud.com will appear in your yourname@icloud.com inbox. This allows you to use different addresses for different purposes while keeping everything in one place.

It’s important to note that you can still create up to three email aliases through iCloud. Remember that while these aliases provide some flexibility, they do not create separate Apple IDs or completely hide your primary iCloud email address.

Using the “Hide My Email” feature on Apple devices

Hide My Email is a feature available with iCloud+ that allows you to create unique, random email addresses that are forwarded to your personal email account. This helps keep your real email address private when filling out forms, signing up for newsletters, or sending emails. Here’s how to set up Hide My Email:

• Go to Settings on your iPhone or iPad.
• Tap your name at the top, then tap iCloud.
• Tap Hide My Email. Here, you can create and manage your unique email addresses.
• Tap Create New Address and follow the on-screen instructions to generate a new random email address.

Here’s how to deactivate a Hide My Email address.

• Go to Settings on your iPhone or iPad.
• Tap your name at the top, then tap iCloud.
• Tap Hide My Email.
• Tap an existing address.
• Click Deactivate Email Address to stop forwarding emails to your personal account.
• Confirm your decision by clicking Deactivate.

You can also generate Hide My Email addresses directly in Safari, Mail, and supported third-party apps by tapping the email address field and selecting Hide My Email above the keyboard.

Note that Hide My Email has limitations. You need an iCloud+ subscription to use Hide My Email. This feature is not available with the free iCloud plan. While there is no official limit on the number of aliases you can create, some people have reported creating hundreds of addresses without issue. Hide My Email works with iCloud+, Apple Pay, and the Mail app. Support for other apps and services is expanding but may not be available for all. Some people have reported occasional issues with email deliverability when using Hide My Email addresses. Managing multiple aliases can become cumbersome, especially if you need to deactivate or update them frequently. 

How to create a new email alias in Yahoo Mail

• Open Yahoo Mail:
  • Go to Yahoo mail and sign in to your account.

• Access Settings:
  • Click on the gear icon in the top-right corner to open the settings menu.
  • Select More Settings from the dropdown menu.

• Navigate to Mailboxes:
  • In the left-hand menu, click on Mailboxes.

• Add a New Alias:
  • Under the Email alias section, click the Add button.
  • Enter the name of your new email alias (without the “@yahoo.com” part) in the field labeled Create a new Yahoo Mail address.
  • Click the Set Up button.

• Provide Additional Information:
  • Enter your name, a description for the alias, and choose whether you want replies to be sent to the alias or your main Yahoo email address.
  • Click the Finish button.

• Limitations:
  • Limited Number of Aliases: You can only create one main email alias that can both send and receive messages. Additionally, you can create up to 10 send-only email addresses and 500 disposable email addresses.
  • Editing Restrictions: You can only edit your email alias up to two times within a 12-month period. This means you need to choose your alias carefully.
  • Compatibility Issues: Some websites and services may not accept email aliases, especially those that use the “+” character in the address. This can limit the usefulness of aliases for certain sign-ups.
  • Potential for Mix-Ups: Using multiple aliases can sometimes lead to confusion or mix-ups, especially if you forget which alias you used for a particular service.
  • Spam and Security: While aliases can help manage spam, they are not foolproof. Spammers can still send emails to your aliases, and if an alias is compromised, it can lead to spam in your main inbox.
  • Communication Challenges: Managing multiple aliases can complicate communication, especially if you need to reply from the correct alias to maintain clear and consistent communication.

Private and secure email option with unlimited aliases

While many email providers offer basic alias functionality, most have significant limitations. Gmail’s “+” addressing and dot tricks, Outlook’s linked aliases, and Apple’s iCloud aliases all provide some flexibility, but they often fall short of true privacy protection.

Related Links:

• How to stop spam mail, political texts, and email spam for good
• New Gmail tool makes it easy to unsubscribe from emails in bulk
• How to detect fake Amazon emails and avoid impersonation scams

Kurt’s key takeaway

We’ve made progress when it comes to password hygiene. Many of us now use password managers and enable two-factor authentication, but when it comes to email, the habits haven’t changed much. Most people still rely on a single email address for everything, including shopping, banking, subscriptions, work, even family communication. That’s not just inefficient, but also a security risk. Using email aliases is a simple way to fragment your digital identity. It adds complexity for attackers and reduces the chances of a single breach affecting multiple accounts.

Would you still use your main email for everything if you knew it made you easier to track? Let us know in the comments below.

FOR MORE OF MY SECURITY ALERTS, SUBSCRIBE TO MY FREE CYBERGUY REPORT NEWSLETTER HERE

Copyright 2025 CyberGuy.com.  All rights reserved.  CyberGuy.com articles and content may contain affiliate links that earn a commission when purchases are made.