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 tagged address, you can apply this principle: use plus tags for convenient sorting and real aliases for stronger separation. With a separate alias, the base address remains visible and tags can be stripped or rejected. 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.

  • Test provider support
  • Use tags for sorting
  • Use aliases for privacy
  • Avoid tags for critical recovery

The honest caveat

Support varies across forms and mail systems. 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