SPF
Sender Policy Framework — a DNS TXT record listing which servers are authorized to send mail for your domain. Mail from an unlisted server looks forged, whether it actually is or not.
Sender Policy Framework — a DNS TXT record listing which servers are authorized to send mail for your domain. Mail from an unlisted server looks forged, whether it actually is or not.
v=spf1 include:_spf.google.com ~all
Publish as a single TXT record on the apex. Never create two SPF records.
Related
- DKIM — cold email glossary
DomainKeys Identified Mail — a DNS record and cryptographic signature that proves an email was not altered in transit and actually came from your server.
- 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.