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17th Mar 2023
What is An SPF Record and How does It Work: SPF Record Explained

An SPF record is a TXT record published in the DNS by the domain owner, which specifies a whitelist of IP addresses allowed to send emails on behalf of the domain. When an email reaches the receiving server, the server will look up the SPF record in the DNS, and perform a check to determine if the e…

Sender Policy Framework SPF SPF Record SPF Mechanism SPF Modifier SPF Qualifier SPF Evaluation
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17th Mar 2023
SPF PermError: Too Many DNS Lookups - When SPF Record Exceeds 10-DNS-Lookup Limit

"SPF PermError: too many DNS lookups" is a common error seen in many SPF (Sender Policy Framework) implementations. When an often overlooked SPF 10-DNS-lookup limit is exceeded, an SPF PermError, aka SPF permanent error, is returned. SPF PermError's can affect your email deliverability…

SPF SPF PermError Too Many DNS Lookups
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17th Mar 2023
Introduction to SPF
What is SPF

Sender Policy Framework (SPF) is an email authentication mechanism which allows only authorized senders to send on behalf of a domain, and prevents unauthorized users from doing so. SPF allows the receiver to check that an email claiming to come from a specific domain indeed comes from…

SPF
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17th Mar 2023
Why SPF Authentication Fails: none, neutral, fail(hard fail), soft fail, temperror, and permerror Explained

DMARC (Domain-based Message Authentication, Reporting and Conformance) specifies these possible errors (non-pass) in SPF (Sender Policy Framework) authentication: none, neutral, fail (hard fail), softfail (soft fail), temperror (temporary error), and permerror (permanent error)…

SPF
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17th Mar 2023
How to Add SPF Record in Bluehost: Bluehost SPF Setup Guide

This post provides step-by-step instructions on how to add an SPF record in Bluehost.

About SPF records

An SPF record is a TXT record published in the DNS on your domain, starting with v=spf1. It's used to perform SPF checks on the receiving email server…

SPF SPF Record Bluehost
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17th Mar 2023
How to Add SPF Record in CloudFlare: CloudFlare SPF Setup Guide

This post provides step-by-step instructions on how to add an SPF record in CloudFlare.

About SPF records

An SPF record is a TXT record published in the DNS on your domain, starting with v=spf1. It's used to perform SPF checks on the receiving email server…

SPF SPF Record CloudFlare
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