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 signup address, you can apply this principle: decide whether the account needs a durable alias before completing the form. With your everyday inbox, a casual form can create years of marketing, correlation and recovery traffic. 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.

  • Check the recovery need
  • Create a unique alias
  • Use a unique password
  • Record what the address is for

The honest caveat

Short-lived addresses are a poor fit for accounts you may need to recover. 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