Latest by Palisade
News, detailed guides, updates regarding email, DMARC and cybersecurity
Feature spotlight: DMARC Agent
Generate white-labeled DNS and DMARC prospecting reports in Palisade. Show SMBs their email vulnerabilities and position your MSP as the trusted fix.
Nov 25, 2025
Feature spotlight: Whitelabel prospecting reports
Generate white-labeled DNS and DMARC prospecting reports in Palisade. Show SMBs their email vulnerabilities and position your MSP as the trusted fix.
Oct 16, 2025
8 Best DMARC Tools for MSPs: Expert-Tested Picks for 2025
Email spoofing got you worried? DMARC tools for MSPs have become essential weapons in the battle against sophisticated phishing attacks and domain…
Oct 2, 2025
DMARC aspf & adkim Tags Explained (Relaxed vs Strict)
What aspf=r, aspf=s, adkim=r, and adkim=s actually do, how alignment works on subdomains, and when to use the sp tag. Clear examples included.
Sep 30, 2025
SPF Softfail (~all) vs Hardfail (-all): Which to Use
~all or -all? What each SPF qualifier does to deliverability, how receivers actually treat them, and why softfail plus DMARC is usually right.
Aug 29, 2025
Fixing SPF Alignment (DMARC) — Full Guide
If your DMARC report says “SPF not aligned” (or you’re seeing p=quarantine/reject hits you didn’t expect), this guide is for you.
Aug 11, 2025
Fix '550 5.1.1' Bounce: Recipient Address Not Found
The 550 5.1.1 bounce means the recipient address failed lookup. Fix typos, stale contacts, and directory sync issues — and stop the NDRs.
Jun 4, 2025
Fix '550 5.4.1 Recipient Address Rejected: Access Denied'
Step-by-step fix for the 550 5.4.1 recipient address rejected error in Microsoft 365 and Exchange — directory settings, connectors, and DMARC causes.
Jun 3, 2025
DKIM Replay Attacks: When Your Email Signature Becomes the Enemy
DKIM replay attacks can devastate your email security. Learn how to prevent them and safeguard your domain with Palisade's AI-Assisted Workflow and Smart DMARC.
May 29, 2025
What is DMARCbis? The Future of DMARC
Explore DMARCbis, the 2025 email security update. Learn its key changes and how to prepare by ensuring DMARC, SPF, and DKIM compliance today.
May 15, 2025
Fix Microsoft 550 5.7.515 Access Denied (NDR Error)
Why Outlook and Microsoft 365 return NDR 550 5.7.515 Access Denied and the exact tenant settings to fix it — plus how to stop it recurring.
May 6, 2025
Microsoft’s Latest Update to May 5th DMARC rules
Microsoft’s Outlook and Hotmail new security requirements update. Comply by May 5, 2025, or risk immediate email rejection.
May 1, 2025
Email Security Threats and Statistics 2025
2025 email threats are rising! Learn about phishing, Microsoft’s DMARC rules, and how Palisade Workbench boosts security & compliance.
Apr 22, 2025
Microsoft Outlook new DMARC rules
Microsoft Outlook’s 2025 SPF, DKIM, and DMARC rules are here. Learn how to adapt and see how Palisade Workbench solution can help you get compliant.
Apr 5, 2025
Ensuring PCI DSS v4.0 Compliance with DMARC
Ensure PCI DSS v4.0 compliance with DMARC to protect against phishing, spoofing, and email-based threats. Stay secure and meet the March 31, 2025 mandate.
Feb 25, 2025
Why you need to enforce DMARC in 2025?
In 2024, Google and Yahoo cracked down on DMARC. Poor enforcement means email failures, phishing risks, and compliance fines.
Feb 17, 2025
DMARC Reject vs Quarantine: What's the Difference?
DMARC reject vs quarantine: Learn the key differences, when to use each, and how to secure your email domain. Find out which DMARC policy best suits your needs.
Oct 14, 2024
Do I Need to Receive DMARC Emails?
Wondering if you need to receive DMARC emails? Learn why DMARC is essential for email security and how to simplify DMARC reporting without filling your inbox.
Oct 14, 2024
Email Deployment in 2024: What It Means and How to Do It
Email Deployment Guide
May 2, 2024
New Deadline: 7 Days Left to get your Emails in line with Google
Google has announced new authentication requirements for email senders effective from October 2023.
Mar 26, 2024
Debunking: Email Deliverability is not Set and Forget
Email deliverability hinges on constantly evolving compliance, protocols, and security practices, necessitating frequent updates and monitoring to…
Mar 25, 2024
Just In - February 14th Update for Google’s Email Sender Requirements
Google Updates Email Guidelines: New sender rules start February 2024, with focus on unsubscribe options and spam limits.
Feb 15, 2024
Palisade Raises a 1.5M$ Pre-Seed led by Boreal Ventures
Palisade secures a $1.5M pre-seed investment led by Boreal Ventures, bolstering its mission to enhance email automation and monitoring with a focus on…
Jan 31, 2024
Case Study: We increased gaiia’s meetings booked by 21%
Discover how Palisade revolutionized gaiia's email marketing, overcoming deliverability challenges and dramatically increasing open rates from 35% to 50%.
Dec 5, 2023
How to Hit Your Lead's Inbox (Gmail & Yahoo 2024 Update)
Beginning in early 2024, Google and Yahoo are changing their requirements for sending emails.
Nov 21, 2023
How to improve your open rates by 39% with BIMI
Keeping up with the latest in email marketing is crucial, and that's exactly why you should keep and eye on trends like BIMI (Brand Indicators for Message…
Oct 20, 2023
Guide to Email Deliverability in 2024
Imagine investing significant time, effort, and resources, only to find your meticulously crafted emails ending up in the spam folders of your recipients.
Sep 19, 2023
How does DNS fix Email Deliverability?
Fix email deliverability at the DNS level: correct SPF, DKIM, DMARC, MX, and PTR records decide whether your mail reaches the inbox.
Aug 9, 2023
Should You Make Your DMARC Policy Stricter Over Time?
Yes — tighten DMARC gradually: start at p=none, move to quarantine, then reject. Here is the safe timeline, with pct rollout and report monitoring.
Aug 9, 2023
Why You Should Use Cloudflare for DNS Management and How to Set It Up
Why use Cloudflare for DNS: faster resolution, easy SPF/DKIM/DMARC record management, and free DNSSEC — with a step-by-step setup guide.
Aug 9, 2023
SVG vs PNG: Unraveling the Best Image Format for Your Success
SVG vs PNG: which format wins for logos, web, and BIMI email branding — file size, scalability, and when to use each.
Aug 9, 2023
What To Do If You Clicked on a Phishing Link?
Clicked on a phishing link? Don't panic! Phishing is a cybercriminal practice that tricks individuals into revealing sensitive information.
Aug 9, 2023
How to make your Company logo BIMI Compatible
Make your logo BIMI-compatible: convert it to SVG Tiny PS, meet size and trademark requirements, and display it next to your emails in Gmail.
Aug 9, 2023
How to Convert your Company Logo to SVG
Every successful brand needs a memorable logo, but did you know the format of your logo plays a pivotal role in how well it performs?
Aug 9, 2023
How to Understand DMARC Reports
Email delivery is crucial for businesses to communicate effectively with their customers, partners, and employees.
Aug 9, 2023
Google switches to DKIM for Email Authentication
Google's email authentication system has recently undergone significant changes following the discovery of a flaw that allowed scammers to impersonate…
Aug 9, 2023
Why is My Company Logo Not Displaying in Gmail?
Logo not showing in Gmail? Check your BIMI record, SVG format, DMARC enforcement, and VMC — the fixes that get your brand displayed.
Aug 9, 2023
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.
Aug 9, 2023
A Step-by-Step Guide to Getting Verified on Facebook
Getting verified on Facebook can significantly boost your credibility and visibility.
Aug 9, 2023
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.
Aug 9, 2023
Mastering DMARC: Safeguarding Your Domain with Email Authentication
DMARC, which stands for Domain-based Message Authentication, Reporting, and Conformance, is an essential email authentication protocol that helps protect…
Aug 9, 2023
How to Fix "No DMARC Record Found" in 2023
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.
Aug 9, 2023
What is a DNS A Record: Understanding the Fundamentals
DNS A records explained: how they map domains to IP addresses, how to create and check them, and how they differ from CNAME and AAAA records.
Aug 9, 2023
Office 365 Quarantine: Protecting Your Organization from Threats
Office 365 quarantine explained: how Microsoft filters suspicious mail, how admins review and release messages, and how to tune your policies.
Aug 9, 2023
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…
Aug 9, 2023
Why Should You Pay Attention to MTA-STS and Email Security
MTA-STS, also known as Mail Transfer Agent-Strict Transport Security, is a mail protocol designed to encrypt inbound emails with a secure layer.
Aug 9, 2023
How To Get a Verified Mark Certificate (VMC)
A Verified Mark Certificate is a digital document that authenticates the legitimacy of a brand’s logo.
Aug 9, 2023
How do I get a Blue Gmail Checkmark?
Get the blue Gmail checkmark: set up DMARC enforcement, a BIMI record, and a Verified Mark Certificate so Gmail shows your brand as verified.
Aug 9, 2023
SPF Record Generator
Generate a correct SPF record for your domain: syntax, include mechanisms, and the -all vs ~all choice — plus a free SPF generator tool.
Aug 9, 2023
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.
Aug 9, 2023
5 Common Phishing attempts and how to protect against them
Phishing attempts have become a widespread and worrisome issue. Cybercriminals use these deceptive methods to trick individuals and organizations into…
Aug 9, 2023
Fix '554 5.7.5 Permanent Error Evaluating DMARC Policy'
What the 554 5.7.5 DMARC evaluation error means, the DNS record mistakes that cause it, and how to fix your DMARC policy so mail flows again.
Aug 9, 2023
Comprehensive Guide to DNS CNAME Records
DNS CNAME (Canonical Name) Records play a crucial role in the infrastructure of the Domain Name System (DNS).
Aug 9, 2023
How to Trademark a Logo and Protect Your Brand
A trademarked logo is a powerful tool that can set your business apart from the competition.
Aug 9, 2023
DNS TXT Record Lookup: dig, nslookup & Online Tools
Look up DNS TXT records in seconds with dig, nslookup, or our free online checker — plus how to read SPF, DKIM, and DMARC values in the results.
Aug 9, 2023
Fix '550 5.7.1 Unauthenticated Email Is Prohibited'
The 'unauthenticated mail is prohibited' bounce means DMARC rejected your message. How to diagnose SPF/DKIM alignment and fix delivery fast.
Aug 9, 2023
What are DMARC, DKIM, and SPF?
DMARC, DKIM, and SPF explained simply: how the three email authentication standards work together to stop spoofing and phishing.
Aug 9, 2023
Top 10 Reasons Why DKIM Fails
Top 10 reasons DKIM fails: wrong selectors, DNS errors, key length, forwarding — and how to fix each so your email passes authentication.
Aug 9, 2023
Understanding what a Baiting Attack is
Baiting attacks lure victims with free downloads or infected USB drives. See real examples and the defenses that stop this tactic.
Aug 9, 2023
Unraveling the Power of DKIM Selectors
DKIM selectors explained: what they are, how to find yours, rotate keys, and manage multiple selectors across your email services.
Aug 9, 2023
How to Create an SPF Record (Step-by-Step + Examples)
Build a valid SPF record in minutes: syntax, include limits, real examples for Google Workspace and Microsoft 365, and a checker to verify it.
Aug 9, 2023
10 Ways to Protect Yourself from Social Engineering Attacks
Social engineering attacks trick people, not systems. Learn 10 practical defenses — from verification policies to email authentication — to stop them.
Aug 9, 2023
DMARC: Questions About Mail Sending and Mail Receiving
Common DMARC questions answered: how policies affect mail you send and receive, what alignment means, and how to avoid losing legitimate email.
Aug 9, 2023
Understanding SPF Failures: Protecting Your Email Reputation
SPF failures explained: softfail vs hardfail, common causes like exceeding 10 DNS lookups, and how to fix SPF to protect deliverability.
Aug 9, 2023
How Does a Blue Gmail Checkmark Affect Deliverability?
Discover the impact of the blue Gmail checkmark on email deliverability.
Aug 9, 2023
How to Stop Email Spoofing and Protect Your Brand
Stop email spoofing: implement SPF, DKIM, and DMARC enforcement to block attackers from sending as your domain and protect your brand.
Aug 9, 2023
What is Clone Phishing and How Do You Defend Against It?
Clone phishing copies a legitimate email you already received, swapping links for malicious ones. Learn how to spot and stop these attacks.
Aug 9, 2023
SPF for Subdomains: How to Set It Up Correctly
Subdomains don't inherit your SPF record. How to publish SPF for mail-sending subdomains, wildcard pitfalls, and DMARC alignment that holds.
Aug 9, 2023
How much does it Cost to Trademark a logo?
How much a logo trademark costs: USPTO filing fees, attorney costs, and timelines — plus why a registered logo matters for BIMI email branding.
Aug 9, 2023
How to Prevent ARP Spoofing Attacks
Learn how to detect and prevent ARP Spoofing with practical, effective strategies.
Aug 9, 2023
Introduction to SPF Records
If you're involved in managing email deliverability for your tech company, you may have come across the term 'SPF record.' An SPF record, which stands for…
Aug 9, 2023
What is a DNS MX Record: A Comprehensive Guide
DNS MX records explained: how they route your email, how to set priorities, and how to check and fix MX configuration problems.
Aug 9, 2023
Setting Up a DKIM Record for Email Security
Set up a DKIM record step by step: generate keys, publish the DNS TXT record, and verify signing to stop spoofing and improve deliverability.
Aug 9, 2023
How to create a DMARC record
Create a DMARC record in minutes: choose a policy, build the DNS TXT entry, publish it, and start receiving reports on who sends from your domain.
Aug 9, 2023
What is a MITM Attack: Safeguarding Your Company's Network Security
Man-in-the-middle (MITM) attacks intercept traffic between you and legitimate services. Learn the warning signs and defenses that stop them.
Aug 9, 2023
What is BIMI and why does it matter?
BIMI (Brand Indicators for Message Identification) displays your logo in the inbox. Learn how it works, its requirements, and why it matters.
Aug 9, 2023
In-Depth Guide to Understanding and Implementing DMARC and DKIM
DKIM, or DomainKeys Identified Mail, is an email authentication method that associates a digital signature with an email message.
Aug 9, 2023
How to Set Up DKIM in Office 365 (Microsoft 365)
Enable DKIM signing in Microsoft 365 step by step: the two CNAME records, Defender portal settings, and how to verify your selector is live.
Aug 9, 2023
Dumpster Diving: The Hidden Cyber Threat Lurking in Your Trash
Discover dumpster diving, a cyber threat exploiting discarded data, and learn secure disposal strategies.
Aug 9, 2023
How to Flush DNS Cache on Mac, Windows & Linux
Clear your DNS cache in one command — macOS, every Windows version, and Linux distros — plus how to flush browser DNS and confirm it worked.
Aug 9, 2023
How to Detect and Verify Fake Email Senders?
Spot fake email senders: check headers, verify SPF, DKIM, and DMARC results, and use sender verification tools to detect spoofed messages.
Aug 9, 2023
How to Create a BIMI Record: A Step-by-Step Guide
BIMI is an emerging standard that allows you to display your brand logo or image next to your email messages in supporting email clients.
Aug 9, 2023
Comprehensive Guide to Data Breach Prevention Best Practices
Data breach prevention best practices: access controls, employee training, email authentication, and monitoring to keep attackers out.
Aug 9, 2023
Unmasking the Secrets of IP Spooking
IP spoofing lets attackers fake source addresses to bypass filters and launch attacks. Learn how it works and how to defend your network.
Aug 9, 2023
The Ultimate BIMI Generator Guide
BIMI generator guide: create a valid BIMI record, convert your logo to SVG Tiny PS, and get your brand displayed in Gmail and Yahoo inboxes.
Aug 9, 2023
Google just announced it’s Gmail verified checkmark
Google's Gmail verified checkmark shows a blue tick next to authenticated brands. Learn how BIMI and a VMC get your logo verified.
Aug 9, 2023
SMS Spoofing: Understanding and Mitigating Risks
SMS spoofing lets attackers fake sender IDs in text messages. Learn how smishing works and how to protect your business and customers.
Aug 9, 2023
DNS TXT Records Explained: Format, Uses & Examples
What a TXT record is, the exact syntax, and how TXT records power SPF, DKIM, DMARC, and domain verification — with copy-paste examples.
Aug 9, 2023
DMARC Policy Not Enabled: How to Fix It
Fix the 'DMARC policy not enabled' warning: move from p=none to quarantine or reject safely, with monitoring to avoid losing legitimate mail.
Aug 9, 2023
The ABCs of DNS PTR Records
DNS PTR records explained: how reverse DNS works, why mail servers check it, and how to set up PTR records to improve email credibility.
Aug 9, 2023
Protect Yourself from Malicious Email Attachments | Tips & Prevention
Malicious email attachments deliver most malware. Learn the file types to watch, how to verify senders, and defenses that stop infected files.
Aug 9, 2023
Comparing DKIM and SPF Email Standards: Are Both Necessary?
DKIM vs SPF: how each email authentication standard works, where they differ, and why you need both — plus DMARC — to stop spoofing.
Aug 9, 2023
Step 2 → Logo - SVG & Trademark
The second step for obtaining your verified blue Gmail checkmark will consist of you uploading your company logo in a specific SVG format to your public…
Aug 9, 2023
Master Guide: Obtaining your blue verified Gmail checkmark
Guide to Gmail’s blue checkmark, mastering BIMI, SPF, DKIM, DMARC with Palisade’s AI Workflow.
Aug 9, 2023
Step 1 → Configuring your DNS and Preparing to Setup your BIMI
To get a more detailed guide on Step 1 - Please consult our dedicated guide on - Configuring your DNS and preparing to Setup your BIMI Record
Aug 9, 2023
Step 3 → Obtaining your Verified Mark Certificate (VMC)
The third step for obtaining your blue verified Gmail checkmark is to apply for a Verified Mark Certificate.
Aug 9, 2023
How to Set Up a BIMI Record (Cloudflare & Any DNS)
Create and publish a BIMI record so your logo shows in inboxes — exact DNS values, a Cloudflare walkthrough, and a free BIMI checker to verify it.
Aug 9, 2023