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550 SPF Check Failed

What Is The “550 SPF Check Failed” Error And How To Fix It

The problem might be at your end, and will probably need to reconfigure your SPF DNS records. Here is how.
What Is Email Backscatter And How To Prevent It

What Is Email Backscatter And How To Prevent It

Bulk non-delivery reports are a sign of email spoofing. Protect your domain's name with these simple yet effective techniques and…
New Gmail Email Policy Causes Mail Is Unauthenticated Bounceback Error

New Gmail Policy Causes “Mail Is Unauthenticated” Bounceback Error – How To Fix It?

Gmail and Yahoo have updated their email deliverance policies, causing havoc in the bulk-email-sending world. Comply with their new guidelines…
SPF PermError Too Many DNS Lookups When SPF Record Exceeds 10 DNS Lookup Limit

What Is The SPF “PermError Too Many DNS Lookups” And How To Fix It

Your domain's SPF record might no need to be so big after all. Here is why the error occurs, and…
What Is MTA STS And How To Configure It For Secure Email Authentication

What Is MTA-STS And How To Configure It For Email Security

SMTP communication is vulnerable to MITM attacks. Learn how MTA-STS keeps your email communication secure between mail servers with TLS…
Brand Indicator Message Identification (BIMI)

What Is Brand Indicator Message Identification (BIMI) Record And Its Effect On Email Authentication

Want to improve your email deliverability and validity? BIMI might be the thing you need for bulk email sendouts.
Email Authentication SPF DKIM DMARC

DKIM vs. SPF vs. DMARC: What’s The Difference?

Confused how SPF, DKIM, and DMARC work together? This post will surely clear things up for you.
What Is Domain Based Message Authentication Reporting And Conformance (DMARC) Policy & Reporting

What Is Domain-Based Message Authentication Reporting And Conformance (DMARC) Policy & Reporting – A Comprehensive Guide

Email authentication requires several technologies, including DMARC. Here is how to understand DMARC records and configure them.
DomainKeys Identified Mail (DKIM) Signature authentication between servers

What Is DomainKeys Identified Mail (DKIM) In Email Authentication And How Does It Work

DKIM helps email servers filter out spam and spoofed emails, amongst other technologies. Here is the ole of DKIM in…
Windows 10 Cumulative Update Generic

Windows 10 KB5035941 Adds Lock Screen Status, Spotlight As Default Desktop

Windows 10 gets Windows 11-like features with this optional update.

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