Email Authentication4 min read
Google switches to DKIM for Email Authentication
In 2023 a flaw let scammers earn Gmail's blue checkmark via SPF. Here's why Google now requires DKIM for BIMI, and what it means for senders today.
Read article →Practical insights for safer email.
Guides, product updates, and email security news from the Palisade team.
Page 3
More resources
60 articles
Email News6 min read
Why is My Company Logo Not Displaying in Gmail?
Gmail shows a logo only when BIMI, DMARC enforcement, an SVG Tiny PS file, and a VMC all line up. Here is the order to check them in, and the usual culprit.
Read article →
Email News8 min read
How Companies Get the Verified Blue Checkmark on Twitter
How companies get verified on Twitter/X: eligibility, the application process, and how verification protects your brand from impersonation.
Read article →
Email News6 min read
A Step-by-Step Guide to Getting Verified on Facebook
Getting verified on Facebook can significantly boost your credibility and visibility.
Read article →
Email News9 min read
Meta's Paid Verification for Creators
Paid verification, as the name suggests, involves a fee-based process where users can apply for verification on Instagram.
Read article →
Email Authentication7 min read
Mastering DMARC: Safeguarding Your Domain with Email Authentication
Master DMARC: how it builds on SPF and DKIM, what each tag does, the three policies, how to roll out safely to enforcement, and what RFC 9989 changed.
Read article →
Email Authentication7 min read
How to Fix "No DMARC Record Found"
Fix the 'No DMARC record found' warning: create and publish a DMARC TXT record in DNS, then verify it, a step-by-step guide with examples.
Read article →
Email Authentication7 min read
What is a DNS A Record, and how to check yours
A records map a hostname to an IPv4 address. What they contain, how TTL affects changes, how they differ from AAAA and CNAME, and how to look up any domain's.
Read article →
Email News12 min read
Office 365 Quarantine: Protecting Your Organization
Office 365 quarantine explained: how Microsoft filters suspicious mail, how admins review and release messages, and how to tune your policies.
Read article →
Security8 min read
The Ultimate Guide to Preventing Phishing Attacks
Phishing is a malicious activity aimed at tricking individuals into revealing their sensitive information, such as usernames, passwords, and financial…
Read article →
Security12 min read
ARP Poisoning: What it is and How to Prevent
ARP poisoning lets attackers intercept traffic on your local network. Learn how the attack works and the defenses that stop it.
Read article →
Email News6 min read
Comprehensive Guide to DNS CNAME Records
A DNS CNAME record aliases one hostname to another. Learn how CNAMEs work, when to use them, the apex-domain rule, and how they power DKIM setup.
Read article →