Email API
A programmatic interface to find or verify addresses. Useful when the finder sits inside Clay, n8n, or your own waterfall.
A programmatic interface to find or verify addresses. Useful when the finder sits inside Clay, n8n, or your own waterfall.
Also see: Waterfall enrichment
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A programmatic interface to find or verify addresses. Useful when the finder sits inside Clay, n8n, or your own waterfall.
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- Waterfall enrichment — cold email glossary
Trying providers in sequence until one returns a hit. A miss that costs nothing is what makes a provider cheap to place early in the waterfall.
- Cold email & deliverability glossary
Plain-language definitions for the terms that come up in cold outreach and email deliverability: bounce rate, catch-all, SPF/DKIM/DMARC, sender reputation, and more.
- Bounce rate — cold email glossary
The share of sent emails a mail server refuses to deliver. A hard bounce means the mailbox does not exist; a soft bounce means it is temporarily unreachable.
- Hard bounce — cold email glossary
A permanent delivery failure: the mailbox does not exist, the domain does not accept mail, or the server has rejected the recipient for good. Hard bounces are the ones that wreck sender reputation.