From inbox arrival to verified delivery.
A five-step flow that’s simple, transparent, and entirely under your control.
Email arrives
When an email arrives in your inbox, SpamBuster checks to see if it’s on an allow list.
Is the sender on a list?
Yes: the message stays in your inbox, no action taken — you know this sender.
No: the message is moved to your SpamBuster folder.
Ask sender to verify
The sender gets an email stating the message has been delivered, but isn’t in the inbox until they verify they’re human and this isn’t spam.
Did the sender verify?
Yes: the message is moved to your inbox with an information block at the top. You may know this sender, but let’s be sure.
No: the message stays in your SpamBuster folder.
You stay in control
If a message you actually wanted is still in your SpamBuster folder, you can click Allow this sender at the top of the message to allow them now and always bypass verification for them in the future.
Can I edit the allow lists?
You are 100% in control of your allow lists. There’s no IT department setting up rules or blocks. You see everything that hits your inbox and you’re in full control.
Can I always block someone?
Absolutely. For instance, if you never have a reason to email people in Russia, you can set SpamBuster to never allow messages from anyone in Russia and never request a verification.
Eight allow lists you can toggle.
- Email addresses in your contacts
- Email addresses you’ve sent to
- Same-domain addressesGreat for corporate; not Gmail
- Addresses already in your inboxNewsletters, dentist reminders, streaming services
- Email sent to a specific aliasFor bills or alias redirects
- Messages containing a magic code you set
- Domains on a known-good listMicrosoft, Google, Apple, Netflix, Citi
- Senders with reputation of 80 or more
Always know who’s emailing you.
Have you ever received an email from a name you knew, but it wasn’t actually from that person? The information block adds critical details to the top of a message so you can see exactly what’s going on.
| Field | Example value | Color |
|---|---|---|
| Message from | Sender full name and email | Info |
| Message sent to | Actual email address (useful for aliases) | Info |
| Sender IP, Verifier IP | 123.231.123.2, 123.231.123.5 | Green |
| Time between send and verification | 6 minutes | Green |
| Sender country | Russia | Red |
| Reply-to address | Full reply-to address | Yellow if different |
Action buttons inside the block: move to SpamBuster & remove from allow lists, or move to Inbox & add to allow list.
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