What stays the same

Both choices can receive legitimate mail. Neither guarantees anonymity, trustworthy senders or secure accounts. You still need unique authentication and a dependable recovery plan.

What changes

With a unique identifier and secret, you can apply this principle: pair a per-service alias with a unique password or passkey. With one repeated login pair, a breach can reuse both the address and password across many services. The value is containment rather than invisibility.

A separate route changes the size of the clean-up.

How to choose

Use the simpler option when the consequence is small and the relationship is short. Choose stronger separation when recovery, public exposure or cross-context matching would matter.

  • Generate unique passwords
  • Store the matching alias
  • Enable strong MFA
  • Update both after a breach

The honest caveat

Aliases complement strong authentication; they do not replace it. Make the decision for the risk you actually have, not the most dramatic risk you can imagine.

Give the next relationship its own route.

Create an MXDuck alias