How to Create a Temporary Email Address

Open your browser and go to a temporary email service. NukeMail (nukemail.app) is one option — it gives you a custom email address with no signup required. Other services include Guerrilla Mail, 10MinuteMail, and Mailinator, each with different features and limitations.

You do not need to create an account, enter a password, or provide any personal information. The whole point of temp email is that it requires zero identity. You should be able to go from opening the website to having a working email address in under 30 seconds.

Temp email services work on any device with a web browser — desktop, phone, or tablet. There is nothing to install, no app to download, and no extension to enable. Bookmark the service for quick access the next time you need a throwaway address.

Most temp email services either assign you a random address or let you choose your own. Choosing your own is better because it looks more natural on signup forms. On NukeMail, you will see a text field before the @ sign where you can type any name you want — something like "alex.m" or "j.smith".

If you do not care about the name, hit the randomize button (if available) to get a randomly generated name like "comet482" or "drift917". These are designed to look normal while being easy to generate. Avoid names that contain words like "temp", "fake", "throwaway", or "test" because some websites scan the email name and reject addresses that appear disposable.

The email name is case-insensitive, so "Alex.M" and "alex.m" go to the same inbox. Stick with lowercase for simplicity. You can use letters, numbers, dots, and hyphens in most services. Spaces and special characters like exclamation marks are not valid in email addresses.

The domain is the part after the @ sign. Some temp email services only offer one domain, while others give you multiple options. Having multiple domains matters because some websites block known temp email domains. If one domain is rejected, you can try another.

On NukeMail, pick from the available domains in the dropdown. Domains marked with a warning may be blocked on some websites — choose an unmarked domain for the best compatibility. Newer domains that have not been widely shared tend to work better because they have not yet been added to corporate blocklists.

The domain you choose does not affect the functionality of your inbox. All domains work identically for receiving emails. The only difference is compatibility with the websites where you plan to use the address.

Hit the Create button. Your inbox is now live and ready to receive emails. Copy the full email address using the copy button — you will need to paste it into whatever signup form or service you are using. Most services place the copy button right next to the displayed address for quick access.

At this point you also receive an access code (on NukeMail, it looks like NUKE-XXXXXXXXXX). This code lets you return to your inbox later from any device. Save it somewhere if you think you might need to check the inbox again. A password manager or a simple note on your phone works well for this.

The inbox starts receiving emails immediately after creation. There is no activation delay or DNS propagation to wait for. The moment the address exists, emails sent to it will be delivered.

Paste your temp email into the signup form, newsletter subscription box, or any other field asking for an email address. Submit the form normally. Any emails sent to your temp address will appear in your inbox in real time.

Keep the temp email tab open in your browser while you wait for the confirmation or verification email. On most services, the email arrives within seconds to a couple of minutes. If you close the tab, you can still return using the access code or your browser session, but keeping it open lets you see the email arrive instantly.

Go back to your temp email inbox tab. New emails show up automatically — no need to refresh. Click on any email to read its full content, click links, or copy verification codes. The email viewer displays both HTML formatted emails and plain text, so you will see the email as the sender intended it to look.

On NukeMail, your inbox stays active for 24 hours. After that, it enters a locked state where you can see sender names and subjects but not the email content. After 14 days, everything is permanently deleted. This lifecycle exists to keep the service clean while giving you a reasonable window to access your emails.

If you receive multiple emails, they appear in chronological order with the newest at the top. Each email shows the sender, subject line, and timestamp. Click any email to expand and read the full content.

When you no longer need the inbox, you can close the tab and walk away — it will expire on its own. Or, if you need a fresh address for a different signup, click Generate New Email to create a completely new inbox with a new address and new access code. The old inbox is deleted immediately when you do this.

There is no limit to how many temp addresses you can create. Each one gets its own inbox, its own access code, and its own 24-hour lifecycle. Create as many as you need for different signups, and each one stays compartmentalized from the others.