Quick Answer
A DNS record that specifies which mail servers are authorized to send email on behalf of your domain.
SPF is a TXT record published in your domain's DNS. It lists authorized IP addresses and servers that can send email for your domain. Receiving servers check SPF to verify the sender's legitimacy. SPF records have a 10-lookup limit — exceeding it causes authentication failures. MisarMail provides SPF record templates for easy setup.
An email authentication protocol that lets receiving servers verify that an email was sent by the domain it claims to be from.
DMARC (Domain-based Message Authentication)An email authentication policy that tells receiving servers what to do with emails that fail DKIM or SPF checks.
Email DeliverabilityThe percentage of emails that reach the recipient's inbox rather than the spam folder or being bounced.
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