Expert guides on SPF, DKIM, DMARC, and email security.
Legitimate emails fail DMARC and land in spam when SPF or DKIM don’t align with the visible From domain due to configuration errors or forwarding/mailing-list.
DNS authentication verifies legitimate senders and helps prevent phishing, spoofing, and spam.
Email marketing has become far more sophisticated than simply sending newsletters to a contact list.
The 45-Point Deliverability Gap Hiding in Your DNS Every email marketer obsesses over subject lines, send times, and segmentation.
Cyber threats, phishing scams, and malicious websites are more common than ever, making it important to verify every suspicious URL before clicking.
The $300 Billion Market’s Most Overlooked Revenue Stream The Houlihan Lokey Managed Services Industry Overview (PDF, July 2025).
To set up DMARC with SPF and DKIM for full email compliance, publish an SPF TXT record (v=spf1 … -all).
In cybersecurity, dumpster diving refers to harvesting discarded data to gain leverage for attacks.
To protect your domain from phishing using DMARC, authenticate all legitimate mail with SPF and DKIM, ensure identifier alignment.
Reverse-engineering the costliest email attacks of 2024-2025 using FBI IC3 data. $20.877B in losses, 1M+ complaints, and how DMARC enforcement would have prevented them.
A quick roundup of the biggest cybersecurity stories of the week, from a massive breach at an edtech giant to supply chain attacks hitting AI developers.
11% Protected. 289 Million Records Breached. The Numbers Do Not Lie.
The Attack That p=reject Cannot Stop You have done everything right. You published a DMARC record on your root domain.
Getting your support emails delivered shouldn’t feel like guesswork, but without proper authentication.
The TLS handshake serves as the cornerstone of secure online communication today, operating discreetly whenever you access a website using HTTPS.
Quick answer: The best free DMARC monitoring tools in 2026 are DMARC Report (free tier with automated report ingestion, visual dashboards, 1 domain.
To reliably detect email authentication failures without blocking legitimate mail, implement strict DMARC alignment on high‑risk domains.
To identify authentication weaknesses with a DMARC record check, reliably fetch and parse the domain’s DMARC TXT record.
For successful email delivery, there’s one essential aspect you must get right: the MX records of your domain.
Quick answer: The best DMARC solutions for healthcare organizations in 2026 are DMARC Report (enterprise compliance with SLAs, DPAs, and SOC-2 Type II).
Latest cybersecurity roundup: a critical infrastructure manufacturer breached, fake Microsoft Teams chats used in phishing attacks, and AI-driven cyberattacks targeting Indian MSMEs.
DMARC starts working as soon as receiving servers can resolve your updated _dmarc TXT after DNS caches expire, typically within your record’s TTL (often 5-60 minutes), with a long-tail of up to 24-48 hours globally.
Quick answer: The best DMARC tools for MSPs in 2026 are DMARC Report (white-label multi-tenant with 50% partner pricing and dedicated onboarding).
Spoofing calls have emerged as a prevalent and perilous type of phone scam, deceiving individuals into believing that they are receiving legitimate calls.
Email deliverability rules that every organization should know about
Quick answer: The best DMARC tools for multi-domain enterprises in 2026 are DMARC Report (enterprise compliance with SLAs, DPAs, SOC-2 Type II.
Quick answer: PCI DSS v4.0 Requirement 5.4.
To read DMARC reports and turn complex data into actionable insights, extract the key RUA/RUF XML fields (policy, source IPs, SPF/DKIM results, alignment.
When you get a 550 5.7.1 non-delivery report, the mail system is saying “recipient address rejected” or “access denied” because the receiving server enforc
Here is a number that should alarm every IT leader, business owner, and security professional reading this: in 2025.