Per-Sender Alias Maker

Give every company its own email address, then label, archive or bin each one with a rule. When one leaks or turns spammy, you know exactly who did it, and one filter shuts it off.

1. Your base address

Mailbox Style

2. Add a sender, pick a rule

Sender / company Rule Label

Sender	Alias to give them	Rule

No aliases yet. Try "Amazon", "Newsletter", "Airline".

3. Export the rules

Download a Gmail filter file and import it at Gmail → Settings → Filters and Blocked Addresses → Import filters. Each alias becomes one filter on the To: address. Your list is saved in this browser only.

Pricing

Free

This tool: unlimited plus-address aliases, rules, Gmail filter export. Runs in your browser; nothing is sent anywhere.

$5/mo

Planned hosted tier: real unique addresses on a forwarding domain (no visible "+"), auto-unsubscribe and bounce. Not available yet: no payment is taken today.

Plus-addressing limits: some sign-up forms reject "+", and a sender can strip the tag to reach your base address. The hosted tier exists to fix exactly that.