How to Fix “The DNS record type 99 (SPF) Has Been Deprecated”?

You may have come across an SPF record warning “The DNS record type 99 (SPF) has been deprecated” because it was discontinued in 2014

How to Implement Mail Domain Authentication in Your Email Infrastructure

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Mail domain authentication ensures that the sender of the email is who they claim to be, and the recipient can trust the email.

How to Configure Single Sign-On (SSO) with Microsoft Azure Active Directory?

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Microsoft SSO is a user authentication process that allows you to operate multiple applications using a single account.

How to delegate a subdomain to another NameServer?

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In order to delegate a subdomain to another nameserver you need to identify the subdomain, create new zone file and NS record.

SPF Syntax: A Complete Guide

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This blog broadly speaks about the SPF syntax table, SPF mechanism, SPF qualifier, and SPF modifier

How to fix 550 SPF Check Failed? [SOLVED]

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The “550 SPF check failed” message is common error prompt that maybe triggered by an absent or invalid SPF record in the sender’s DNS, or third-party spam filters.

How to Fix “The DNS record type 99 (SPF) Has Been Deprecated”?

How to Implement Mail Domain Authentication in Your Email Infrastructure

How to Configure Single Sign-On (SSO) with Microsoft Azure Active Directory?

How to delegate a subdomain to another NameServer?

SPF Syntax: A Complete Guide

How to fix 550 SPF Check Failed? [SOLVED]

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