Spoofing
Sending mail that claims to be from a domain you do not control. SPF, DKIM and DMARC exist to make this harder.
Sending mail that claims to be from a domain you do not control. SPF, DKIM and DMARC exist to make this harder.
Also see: DMARC
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Sending mail that claims to be from a domain you do not control. SPF, DKIM and DMARC exist to make this harder.
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- DMARC — cold email glossary
Domain-based Message Authentication — a DNS record telling receivers what to do when SPF or DKIM fails (allow, quarantine, or reject), and where to send reports about who is sending as your domain.
- 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.