Blogs
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DMARC
What Breaks When You Move to DMARC p=reject (And How to Fix It First)
Moving to DMARC p=reject silently breaks legitimate email when SPF or DKIM alignment is not configured first. Here is how to audit your sending sources and fix alignment before you flip the switch.
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Deliverability
Why Your Newsletter Triggers Phishing Alerts: How Recipient Gateway Prefetching Breaks Your Mail
Gateway scanners prefetch your tracked newsletter links and file false phishing complaints. Here is why it happens, how to diagnose it, and what you can do about it without removing link tracking.
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DMARC
Why Exchange Online Sender-Domain Connectors Make Your Email Security Look Better Than It Is
Exchange Online sender-domain connectors pass DMARC alignment in a way that looks like good email hygiene, but the underlying sending infrastructure is controlled by Microsoft. Here is what practitioners miss and how to see the real picture.
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DMARC
How Exchange Online Connectors Create a Spoofing Blind Spot (And What DMARC Reports Reveal)
The Exchange Online admin center shows a connector as safe when it matches your sending domain. What it does not show is the shared relay infrastructure behind that connector, and how a misconfiguration there opens your domain to spoofing even when your DMARC policy is set to reject.
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Deliverability
What Does an RFC 822 Failure Mean for Email Delivery? Diagnosis and Fix
An RFC 822 failure usually means a mail server rejected your message because the headers do not meet the email format standard. Here is how to find the cause and fix it.
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DMARC
How Exchange Online Connectors Create a Spoofing Blind Spot (And What DMARC Reports Reveal)
The Exchange Online admin center shows a connector as safe when it matches your sending domain. What it does not show is the shared relay infrastructure behind that connector, and how a misconfiguration there opens your domain to spoofing even when your DMARC policy is set to reject.
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DMARC
The DMARC Mistake Even Experts Make: Why You Need to Monitor Your Own Domain
You set up DMARC monitoring for your users or clients but skip your own domain. Then your own aggregate report catches a misalignment you would never have found otherwise. Here is why self-monitoring matters and how to set it up in minutes.
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DMARC
How Copier Scan-to-Email Blocks the Path to DMARC p=reject
Organizations that want to move to DMARC p=reject often discover their copier fleet has been silently sending unaligned email for years. Here is why it breaks DMARC and what to do about it.
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DMARC
How Third-Party Email Gateways Silently Bypass Your DMARC Protection
Third-party services that send email from your domain without DMARC alignment create a silent bypass vector most organizations do not see. Here is how to find and close these gaps.
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BIMI
Why BIMI Adoption Should Wait Until You Have a Complete Sender Inventory
BIMI lets brands display their logo in supported email clients, but deploying it without auditing your sender inventory first causes authentication failures that undermine the trust signal you are trying to build. This post covers the prerequisites, what gets missed, and how to audit your sending infrastructure before you add a BIMI record.