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DMARC news, best
practices, and thought leadership

Valimail’s blog is the leading source for all things DMARC and Zero Trust email security. 
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Featured posts

dkim alignment failed
  • Email Authentication

DKIM alignment: Why your signature failed (and how to fix it)

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dmarc failure report
  • DMARC, Dmarc as a Service

DMARC failure reports: Everything you need to know in 2025

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All posts

dkim alignment failed
  • Email Authentication

DKIM alignment: Why your signature failed (and how to fix it)

Read more

dmarc failure report
  • DMARC, Dmarc as a Service

DMARC failure reports: Everything you need to know in 2025

Read more

what is a phishing attack
  • Email Security, Phishing

What is a phishing email? How to spot and prevent email scams

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valimail g2 summer 2025 dmarc report - valimail g2 dmarc leader for 12th straight quarter
  • Company Announcements, Email Authentication

Three years running: Valimail remains #1 in G2 report for DMARC for the 12th consecutive quarter

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what is domain reputation
  • Brand Protection, Deliverability

Domain reputation check: What it is and ways to improve

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valimail partner amazon aws
  • Company Announcements

Amazon SES and Valimail collaborate to help companies navigate bulk sender requirements  

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new zealand email requirements framework
  • Email News

New Zealand’s email security requirements and why it matters to all government domains

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what is email impersonation
  • Email Security

What is email impersonation (and how to prevent it in 2025)?

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managing multiple DKIM Records
  • Email Authentication

Managing multiple DKIM records: 7 best practices for your domain

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valimail authenticated answers tony parrillo
  • Authenticated Answers

Valimail Authenticated Answers with Tony Parrillo

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Visual representation for email protection through DMARC policy options: none, quarantine, reject
  • Dmarc as a Service, Email Authentication

What are the DMARC policy options, and how do you reach enforcement?

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what is shadow IT
  • Email Security

What is shadow IT (and what to do about it)?

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