Temp mail vs. email aliases: which should you use?
Two tools dominate the "stop giving out your real email" conversation: temporary inboxes (like WebMailTemp) and aliasing services (like SimpleLogin, Firefox Relay, or Apple's Hide My Email). They're often lumped together, but they're built for different jobs. Choosing wrong means either losing access to an account or maintaining an alias graveyard.
What an alias actually is
An alias is a permanent forwarding address. Mail sent to [email protected] is relayed to your real inbox. You can mute or delete the alias later, and the receiving site never learns your true address. Crucially, the alias keeps working for as long as you keep it — so password resets and receipts still reach you next year.
What a temporary inbox is
A temp inbox is a self-destructing destination. Nothing forwards anywhere: messages arrive in a throwaway inbox you watch in your browser, and after the timer runs out, the address and its contents cease to exist. There is no link — even a hidden one — back to your real mailbox.
The decision framework
Ask one question: "Will I ever need to receive email from this sender again?"
- Yes, indefinitely → use your real address (bank, employer, government).
- Yes, but it's low-trust → use an alias (online shops, newsletters, communities). You keep long-term access and can revoke it later.
- No, this is one-and-done → use a temp inbox (verification codes, downloads, trials, Wi-Fi portals). Nothing to manage, nothing to revoke, no metadata trail.
Where aliases fall down
Aliases still terminate at your real inbox. The forwarding provider sees your mail flow, every alias adds management overhead, and a spammed alias still means spam arriving until you mute it. And creating an alias takes more steps than most people will bother with for a one-time download.
Where temp mail falls down
The expiry that makes temp mail private also makes it wrong for anything you'll need later. Sign up for a real account with a temp address and you've locked yourself out of password resets forever. It's also a poor fit for senders you actually want to hear from.
Use both
This isn't an either/or. The privacy-savvy setup is a three-tier system: real address for the inner circle, aliases for the middle ring, and a temp inbox for the outer ring of one-time interactions. Each tool covers exactly the gap the others leave — and your real inbox goes quiet in the best possible way.