Instafloss: real-time signup checks

Instafloss checks each new HubSpot contact the moment it is created, through a HubSpot webhook. Fake, disposable and mistyped addresses are caught before they reach your workflows or your next campaign, so lead scoring and nurture sequences run on real people.

Typo Fixer: keep leads instead of deleting them

Typo Fixer corrects common provider typos, like gmial.com to gmail.com, and writes the corrected address back to the HubSpot contact once the fixed mailbox verifies. Other verifiers mark these addresses invalid; mailfloss keeps the lead you already paid to acquire.

Cleanup rules you control

Choose what happens when mailfloss finds an invalid email in HubSpot: wait for your OK, report only, set a contact property your segments can exclude, unsubscribe the contact, or delete it. Whitelist and blacklist rules always keep or always flag the addresses and domains you name.

Decay Protection: re-check older contacts

Email addresses go bad after people join: they change jobs, abandon inboxes, or their company's domain shuts down. Decay Protection re-verifies your existing HubSpot contacts on the schedule you choose and applies your cleanup rule to the ones that stopped working.

Autofloss: daily cleanup

Autofloss checks every contact added to HubSpot since the last run, every night, and applies your cleanup rule. Your lists stay clean without CSV exports, manual reviews or a Zapier recipe to maintain.