# DMARCS > Secure Email Intelligence Platform ## Posts - [SPF PermError: Too Many DNS Lookups. What It Means and How to Fix It](https://www.dmarcs.com/spf-permerror-too-many-dns-lookups-what-it-means-and-how-to-fix-it/): Your emails are landing in spam. Or worse, they’re being rejected outright. You pull up the delivery logs and there it is: SPF PermError: too many DNS lookups. It looks like a minor technical hiccup. It is not. That single error means every email your domain sends is failing authentication, regardless of whether the message is legitimate or not. If your DMARC policy is set to quarantine or reject, the consequences compound fast. This article walks through exactly what causes the SPF PermError, why the 10-lookup limit exists, how it interacts with your DMARC posture, and what you can actually […] - [DMARC Quarantine vs Reject: When Your Domain Is Actually Ready to Make the Switch](https://www.dmarcs.com/dmarc-quarantine-vs-reject-when-your-domain-is-actually-ready-to-make-the-switch/): The question comes up constantly in IT forums, sysadmin Slack channels, and support tickets: “We’ve been on p=quarantine for months. Is it safe to move to p=reject yet?” The honest answer is: it depends on what your aggregate reports are telling you. And most organisations are not reading them closely enough to know. This is not a knock on IT teams. DMARC reports are dense XML files that were designed for machines, not humans. But the consequence of ignoring them is staying parked at quarantine indefinitely, under the assumption that something might break if you move forward. What organisations do […] - [What is DMARCbis? The New IETF Standard for Email Authentication](https://www.dmarcs.com/what-is-dmarcbis-the-new-ietf-standard-for-email-authentication/): The transition of DMARC from its long-standing RFC 7489 informational status to a formal IETF Internet Standard through the DMARCbis draft is set to mark the end of ambiguous organisational domain discovery and the beginning of stricter enforcement requirements for Mail Transfer Agents (MTAs). This shift is prompted by the 2024 mandates from major mailbox providers including Google and Yahoo, which now require valid DMARC records for any bulk sender reaching more than 5,000 recipients per day. While the original protocol served as a critical defence against exact domain spoofing, its reliance on the Public Suffix List (PSL) and its […] - [Fix: Why Your WooCommerce Transactional Emails Are Going to Spam](https://www.dmarcs.com/fix-why-your-woocommerce-transactional-emails-are-going-to-spam/): You have spent hours building your WooCommerce store. You sourced the right products, designed a beautiful storefront, and finally started making sales. But almost immediately, a major problem appears. Customers are contacting your support email asking, “Where is my order confirmation?” or “I never got a receipt.” When you check your WooCommerce dashboard, the orders are there. The system says the emails were sent. So where did they go? In almost every case, they went straight to the customer’s spam folder, or they were blocked completely by the customer’s email provider. When your transactional emails fail to reach the inbox, […] - [What Does High Confidence Phish Mean in Microsoft Defender and How to Fix It](https://www.dmarcs.com/high-confidence-phish-mean-in-microsoft-defender/): Sending emails to clients and partners should be a simple process. However, security filters often get in the way and make email delivery complicated. If your company uses Microsoft 365, you will likely see a specific warning label called High Confidence Phish. This label can cause major headaches, especially when it blocks a real, safe email from a trusted partner or even an internal team member. Because email security rules are getting stricter every year, understanding how Microsoft Defender makes its filtering choices is very important for your business. This guide will explain exactly what this threat label means, why […] - [How to Fix Error 550 5.7.26 in Google Workspace: The Complete Guide](https://www.dmarcs.com/how-to-fix-error-550-5-7-26-in-google-workspace/): Sending a critical business email only to have it bounce back is a major problem. When you look at the bounce details and see the code “550 5.7.26 This mail is unauthenticated,” you are dealing with a strict security block. Google Workspace has actively stopped your message from reaching the recipient. This error does not mean the Google servers are down. It means your domain name failed a background check. Google requires every email sender to prove their identity. If your domain is missing specific DNS records, Google will assume your email is fake, forged, or dangerous. To fix this […] - [Why DMARC Is a Must for Every UAE Financial Institution](https://www.dmarcs.com/why-dmarc-is-a-must-for-every-uae-financial-institution/): The United Arab Emirates has successfully positioned itself as the financial epicenter of the Middle East. With the rapid expansion of the Dubai International Financial Centre and the Abu Dhabi Global Market, the region is attracting unprecedented volumes of foreign direct investment, private wealth, and institutional capital. This economic density creates a highly lucrative environment for business, but it also creates a concentrated target for sophisticated cybercrime. For modern financial institutions operating in this high-stakes ecosystem, security is no longer an invisible IT function. It is a highly visible component of the customer experience and a fundamental pillar of brand […] - [What is SPF (Sender Policy Framework)? The Complete Guide to SPF Records, Email Authentication, and Deliverability](https://www.dmarcs.com/what-is-spf-sender-policy-framework/): To truly understand the Sender Policy Framework (SPF), you must first understand the environment it was built to protect. When the Simple Mail Transfer Protocol (SMTP) was developed in the early 1980s, the internet was a small, academic, and highly trusted network. SMTP was designed simply to route messages efficiently from point A to point B. It was not designed to verify the identity of the person or machine sending the message. Because of this architectural oversight, SMTP allows anyone to claim they are anyone else. Just as you can write a fake return address on a physical envelope and […] - [The Ultimate Guide to Setting Up BIMI After DMARC (And Getting Your Logo in the Inbox)](https://www.dmarcs.com/the-ultimate-guide-to-setting-up-bimi-after-dmarc/): Email marketing is highly competitive. Your subscribers are overwhelmed with messages, and standing out in a crowded inbox is harder than ever. You can write the perfect subject line, but if your email looks like every other generic message, your open rates will suffer. This is where Brand Indicators for Message Identification (BIMI) changes the game. BIMI is an email specification that displays your official, verified brand logo right next to your sender name in the inbox. Before a subscriber even reads your subject line, they see your brand. It provides instant visual recognition, builds trust, and directly drives higher […] - [The 2026 Google and Yahoo Bulk Sender Rules: A Simple Checklist](https://www.dmarcs.com/the-2026-google-and-yahoo-bulk-sender-rules-a-simple-checklist/): Email delivery has quietly shifted from a marketing problem to an infrastructure problem. Good copy and clean design are no longer enough. If your domain is not configured correctly, your emails simply will not reach the inbox. Google and Yahoo made that clear when they rolled out bulk sender requirements in 2024. By 2026, enforcement is strict. The grace period is over. Messages that do not meet these standards no longer face temporary delays. They are now hit with permanent 550 rejection codes or sent directly to the spam folder. There is no grey area anymore. If your organisation sends […] - [Resolving the "550 5.7.1 Sender Authentication Failure" in Office 365 : The Comprehensive Guide](https://www.dmarcs.com/resolving-the-550-5-7-1-sender-authentication-failure-in-office-365-the-comprehensive-guide/): If you are currently looking at a 550 5.7.1 Sender Authentication Failure Non-Delivery Report (NDR) in Office 365, you are likely dealing with a high-pressure situation. Your outbound emails are hard bouncing. Whether these are critical executive communications, customer invoices, or automated system alerts, they are not reaching their destinations. We know that blindly adjusting Exchange connectors or guessing at DNS TXT records can easily cause a wider mail routing outage. The strict deliverability rules enforced by Microsoft, Google, and Yahoo, the 5.7.1 error is rarely a temporary network glitch. It is a hard block. It indicates that Microsoft’s servers, […] - [Who Is Sending as You? Audit Your Email Ecosystem with DMARCS](https://www.dmarcs.com/who-is-sending-as-you-using-dmarcs-to-audit-your-email-ecosystem/): Most organisations believe they understand their email infrastructure. They know their main mail provider, the platform used for newsletters, and the systems responsible for internal alerts. But email environments rarely stay simple. Over time different teams introduce software that sends messages using the organisation’s domain. Marketing launches campaign platforms. HR uses recruitment software that sends interview invitations. Support teams deploy helpdesk systems that email ticket updates. Developers integrate applications that generate password resets, alerts, and verification codes. Each of these services is configured to send email using the company’s domain so messages appear legitimate to recipients. In most cases the […] - [Top 10 DMARC Solutions in UAE: 2026 Guide](https://www.dmarcs.com/top-10-dmarc-solutions-in-uae-2026-guide/): For organizations in the UAE, email remains the primary channel for business communication and the most frequent entry point for cyber threats. From CEO fraud attempts targeting Dubai executives to sophisticated phishing campaigns against government contractors in Abu Dhabi, the attacks are becoming increasingly difficult to detect and costly to mitigate. This reality has made DMARC (Domain-based Message Authentication, Reporting, and Conformance) a critical control. It is currently the only standard that allows organizations to visualize who is sending email on their behalf and block unauthorized senders. Without it, your domain remains vulnerable to spoofing, potentially damaging client trust and […] - [What Microsoft’s DMARC Enforcement Means for Your Email Deliverability](https://www.dmarcs.com/what-microsofts-dmarc-enforcement-means-for-your-email-deliverability/): What Microsoft’s DMARC Enforcement Means for Your Email Deliverability As of May 5, 2025, Microsoft has started enforcing strict email authentication rules for domains that send more than 5,000 messages per day to its consumer email services, including Outlook.com, Hotmail.com, and Live.com. If your emails are not properly authenticated using SPF, DKIM, and DMARC, they are now being diverted to junk folders or rejected entirely. This is not a policy you can opt out of. It is now part of how Microsoft handles email at the infrastructure level.For organisations that have not kept pace with modern email authentication, this change […] - [DMARC Implementation for a Gulf-Based Financial Services Firm](https://www.dmarcs.com/dmarc-implementation-for-a-gulf-based-financial-services-firm/): DMARC Implementation for a Gulf-Based Financial Services Firm The Problem Clients were getting fake emails. Some looked like payment requests. Others mimicked internal notifications. A few nearly succeeded. One came close to redirecting funds from a key commercial client. The company’s name was being used to defraud customers, and there was no technical control in place to stop it. Internally, the team believed SPF and DKIM were enough. But records were broken, unused tools still had access, and dozens of third-party platforms were sending emails on behalf of the domain. No one had full visibility. No one owned the problem. […] - [The Hidden Cost of Not Having DMARC in Place](https://www.dmarcs.com/the-hidden-cost-of-not-having-dmarc-in-place/): The Hidden Cost of Not Having DMARC in Place Most organizations deploy firewalls, antivirus, and endpoint controls. Yet they leave their email domains unprotected. Without DMARC enforcement, your domain can be spoofed by anyone, at any time, with no alert, no audit trail, and no consequence. Except to your reputation, your customers, and your bottom line. Attackers Don’t Need Access to Your Systems. Just Your Domain Name. DMARC (Domain-based Message Authentication, Reporting and Conformance) prevents attackers from sending emails that appear to come from your domain. Without it, your brand becomes a free resource for phishing campaigns, business email compromise […] ## Pages - [BIMI Checker](https://www.dmarcs.com/bimi-checker/): BIMI Checker Check if your domain is ready for BIMI. Verify your BIMI record, logo configuration, and supporting requirements such as DMARC enforcement. Identify issues that can prevent your logo from displaying in inboxes. From validation to brand visibility A BIMI check confirms whether your record and logo are configured correctly. It does not ensure that all underlying requirements are met or that your setup will pass mailbox provider checks. DMARCS helps you move beyond basic validation. You can verify DMARC enforcement, confirm logo hosting and format requirements, and ensure your BIMI record is correctly aligned with your domain. This […] - [DMARC Generator](https://www.dmarcs.com/dmarc-generator/): DMARC Generator Create a precise DMARC record aligned to your domain, without guesswork. Set the right policy, ensure SPF and DKIM alignment, and generate a configuration that strengthens email authentication, protects your brand from spoofing, and supports consistent delivery. From record creation to policy control Generating a DMARC record is only the starting point. The real challenge is ensuring that the policy you publish is accurate, aligned with your email environment, and ready for enforcement. DMARCS helps you go beyond basic record generation. You can define policies with clarity, validate alignment across SPF and DKIM, and ensure your configuration reflects […] - [SPF Checker](https://www.dmarcs.com/spf-checker/): SPF Analyzer Check if your domain’s SPF record is correctly configured, within lookup limits, and aligned with all authorised sending sources. Quickly identify gaps that can cause authentication failures, delivery issues, or unintended exposure. From lookup to control An SPF check shows which servers are authorised to send emails for your domain. It does not tell you if the record is optimised, complete, or safe to enforce at scale. SPF records often grow over time, with multiple services added and rarely reviewed. This leads to overly complex records, lookup limits being exceeded, and gaps that impact authentication. DMARCS gives you […] - [DMARC Analyzer](https://www.dmarcs.com/dmarc-analyzer/): DMARC Analyzer Get a clear view of how your domain is configured for email authentication. Identify gaps in DMARC, SPF, and DKIM that could impact delivery, expose your domain to spoofing, or weaken your overall email security posture. From visibility to control A DMARC check gives you a snapshot of your current setup. It does not fix gaps, track changes, or help you move towards enforcement. DMARCS turns that initial visibility into ongoing control. You get a complete view of all sending sources using your domain, clear identification of alignment issues, and guided steps to strengthen your policy without risking […] - [Blog](https://www.dmarcs.com/blog/) - [Plans & Pricing](https://www.dmarcs.com/plans-pricing/): Simple, Scalable Email Security Plans Choose the level of DMARC protection, automation, and insight your organization needs. Upgrade anytime as your requirements grow. From Visibility to Full Protection Each DMARCS plan is built to match a different stage of email security maturity. Start with visibility, move to enforcement, and scale to full protection with advanced intelligence. Core Plan Built for organizations starting their email authentication journey and gaining visibility into domain activity. DMARC Reporting Forensic Reporting TLS Reporting Upto 5 Domains  Basic Support Contact Sales Gold Plan Designed for teams that want automation, better enforcement, and stronger protection across email […] - [Home](https://www.dmarcs.com/): Enterprise DMARC, Simplified Automate your email authentication setup, monitor threats in real time, and enforce policies effortlessly across all your domains. DMARCS empowers your security team to protect your brand without the usual complexity. 0 K+ Active Users Email Security & Brand Protection, Engineered in the UAE DMARCS was built in the UAE with a clear point of view. Email security should reduce risk without adding friction. We design our platform around how organisations actually operate, under regulatory pressure, reputational risk, and constant change. Every capability is shaped by precision, resilience, and a deep respect for the responsibility that comes […] - [Customer Onboarding Sheet](https://www.dmarcs.com/customer-onboarding-sheet/) - [Request Removal](https://www.dmarcs.com/request-removal/) - [Privacy Policy](https://www.dmarcs.com/privacy-policy/): Privacy Policy DMARCS is committed to protecting your data and complying with relevant privacy laws, including GDPR, UAE PDPL, UAE NESA, UAE DESC, and CREST standards. This policy explains what data we collect, how we use it, and your rights as a user. 1. Information We Collect DMARCS collects only data necessary to deliver and improve our service: We do not collect sensitive personal information beyond what is essential for the service. 2. Consent By using DMARCS, you provide explicit consent for the collection and processing of your data. 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