Email News: Page 2
Browse Palisade articles and guides in Email News.
What is an MTA and how does a mail transfer agent relay email?
What is an MTA? Learn how a mail transfer agent sends, receives, routes, queues, and relays email between mail servers using SMTP and DNS records.
May 12, 2025
What is SMTP? Simple Mail Transfer Protocol Explained
What SMTP is and how the protocol moves email between servers, with the ports, commands, and the SPF, DKIM, and DMARC setup that keeps your mail trusted.
May 12, 2025
What is DKIM and how does DomainKeys Identified Mail sign email?
What DKIM is, how the public/private key signature works, the exact DNS record to publish, current key-length guidance, and how it feeds SPF and DMARC.
Apr 23, 2025
Email Security Threats and Statistics 2025
2025 email threats are rising. Learn how phishing works, what Microsoft's DMARC rules require, and how to check your own domain's authentication.
Apr 22, 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
Email Deployment: What It Means and How to Do It
Email deployment explained: strategy, content, list hygiene, SPF, DKIM, DMARC, and the deliverability metrics that keep your campaigns out of spam.
May 2, 2024
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
How do I read and understand DMARC reports?
Learn how to read DMARC aggregate reports, interpret SPF and DKIM alignment, investigate unknown senders, and prepare safely for enforcement.
Aug 9, 2023
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.
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
How do I get verified on Facebook step by step?
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
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.
Aug 9, 2023
What Is a CNAME Record? How DNS Aliases Work
A CNAME record makes one hostname an alias for another. Learn how CNAMEs resolve, the no-other-data and MX rules, the apex limit, and how to check one.
Aug 9, 2023
DNS TXT Record Lookup: dig, nslookup & Online Tools
Look up DNS TXT records with dig, nslookup, PowerShell, or our free online checker. Find and interpret SPF, DKIM, DMARC, BIMI, and verification records.
Aug 9, 2023
DKIM Failure: How to Diagnose and Fix It
Diagnose DKIM failure from received email: check the selector, public key, body hash and signing path, then retest the affected sender before changing DNS.
Aug 9, 2023
How to Create an SPF Record (Step-by-Step + Examples)
Build a valid SPF record in minutes: syntax, the 10-lookup limit, real examples for Google Workspace and Microsoft 365, and a checker to verify it.
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
What is an SPF record and why does it matter?
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
How do I set up a DKIM record and verify it is signing?
Set up a DKIM record step by step: generate a 2048-bit key, publish the DNS TXT record, verify signing, and fix the errors that break DKIM.
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 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 do I create a BIMI record step by step?
Set up BIMI step by step: enforce DMARC, create an SVG Tiny PS logo, choose a VMC or CMC, publish the TXT record, and troubleshoot display.
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