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        <title>Suped blog</title>
        <link>https://www.suped.com/</link>
        <description>Stay informed with product updates, company news, and insights on how to improve email deliverability.</description>
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            <title><![CDATA[DMARCbis is now published as RFC 9989, 9990, 9991]]></title>
            <link>https://www.suped.com/blog/dmarcbis-is-now-published-as-rfc-9989-9990-9991</link>
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            <pubDate>Mon, 01 Jun 2026 07:07:43 GMT</pubDate>
            <content:encoded><![CDATA[DMARCbis is now RFC 9989, 9990, and 9991. Here is what changed, what did not, and what domain owners should do next.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[ARC is being retired: what the IETF draft means for DMARC teams]]></title>
            <link>https://www.suped.com/blog/arc-is-being-retired-what-the-ietf-draft-means-for-dmarc-teams</link>
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            <pubDate>Fri, 24 Apr 2026 03:30:00 GMT</pubDate>
            <content:encoded><![CDATA[The IETF DMARC group is retiring ARC. Learn why the trust model failed and how DKIM2 aims to fix email forwarding issues.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[NCSC Mail Check Is Shutting Down - Here Is What to Do Next]]></title>
            <link>https://www.suped.com/blog/ncsc-mail-check-is-shutting-down-here-is-what-to-do-next</link>
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            <pubDate>Mon, 02 Mar 2026 04:36:00 GMT</pubDate>
            <content:encoded><![CDATA[The NCSC retires Mail Check on March 31, 2026. Migrate your DMARC reporting and domains to Suped to ensure continued email authentication visibility.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Laposte Cuts Tolerance in Half: New 0.5% Spam Complaint Rate Starts Feb 2nd]]></title>
            <link>https://www.suped.com/blog/laposte-cuts-tolerance-in-half-new-0-5-spam-complaint-rate-starts-feb-2nd</link>
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            <pubDate>Mon, 19 Jan 2026 23:40:00 GMT</pubDate>
            <content:encoded><![CDATA[Laposte lowers its spam complaint rate limit to 0.5% on February 2nd, 2026. Use Suped to monitor metrics and maintain inbox placement.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[DSI SMB1001:2026 DMARC and Email Security Updates Explained]]></title>
            <link>https://www.suped.com/blog/dsi-smb1001-2026-dmarc-and-email-security-updates-explained</link>
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            <pubDate>Sun, 11 Jan 2026 03:48:00 GMT</pubDate>
            <content:encoded><![CDATA[DSI SMB1001:2026 requires DMARC reject or quarantine for Gold. Learn to secure email and maintain deliverability with Suped at https://www.suped.com.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[New Gmail Bulk Sender Compliance Updates - November 2025]]></title>
            <link>https://www.suped.com/blog/new-gmail-bulk-sender-compliance-updates-november-2025</link>
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            <pubDate>Tue, 04 Nov 2025 05:48:00 GMT</pubDate>
            <content:encoded><![CDATA[Gmail enforces sender requirements. Ensure DMARC compliance to prevent rejections. Use Suped at https://www.suped.com to monitor authentication.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Google Postmaster Tools Domain Reputation and IP Reputation Have Been Discontinued]]></title>
            <link>https://www.suped.com/blog/google-postmaster-tools-domain-reputation-and-ip-reputation-have-been-discontinued</link>
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            <pubDate>Tue, 28 Oct 2025 05:50:00 GMT</pubDate>
            <content:encoded><![CDATA[Google is retiring Postmaster Tools. Focus on DMARC and spam rates with Suped for email monitoring at https://www.suped.com.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Google Postmaster Tools V2: "Manage Domains" is Now Live!]]></title>
            <link>https://www.suped.com/blog/google-postmaster-tools-v2-manage-domains-is-now-live</link>
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            <pubDate>Fri, 15 Aug 2025 01:23:00 GMT</pubDate>
            <content:encoded><![CDATA[Google updated Postmaster Tools with a Manage Domains page. Read our take on this update and the features email senders need next, including an API.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Gmail launches "Manage subscriptions" directly in Gmail - everything you need to know]]></title>
            <link>https://www.suped.com/blog/gmail-launches-manage-subscriptions-directly-in-gmail-everything-you-need-to-know</link>
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            <pubDate>Mon, 14 Jul 2025 22:45:00 GMT</pubDate>
            <content:encoded><![CDATA[Gmail's new unsubscribe feature improves list hygiene and deliverability for senders. Use Suped at https://www.suped.com to monitor your email authentication.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Yahoo announces changes to AT&T mail routing]]></title>
            <link>https://www.suped.com/blog/yahoo-announces-changes-to-at-and-t-mail-routing</link>
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            <pubDate>Thu, 26 Jun 2025 22:15:00 GMT</pubDate>
            <content:encoded><![CDATA[AT&T is moving its MX records to Yahoo servers. All incoming AT&T mail will now route through Yahoo, replacing the previous gateway system.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Orange.fr Postmaster is Tightening the Screws: What Their August 2025 Deliverability Updates Mean for You]]></title>
            <link>https://www.suped.com/blog/orange-fr-postmaster-is-tightening-the-screws-what-their-august-2025-deliverability-updates-mean-for-you</link>
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            <pubDate>Thu, 12 Jun 2025 23:19:00 GMT</pubDate>
            <content:encoded><![CDATA[Orange.fr updates email rules in August 2025. Prepare by using DMARC authentication with Suped and meeting new spam thresholds to keep your inbox placement.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[How to fix DKIM body hash mismatch failures]]></title>
            <link>https://www.suped.com/blog/how-to-fix-dkim-body-hash-mismatch-failures</link>
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            <pubDate>Wed, 11 Jun 2025 03:54:00 GMT</pubDate>
            <content:encoded><![CDATA[A DKIM body hash mismatch happens when email content changes in transit, causing authentication failure. Monitor these failures using Suped.]]></content:encoded>
            <author>Matthew Whittaker</author>
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        <item>
            <title><![CDATA[What RFC 5322 Says vs. What Actually Works]]></title>
            <link>https://www.suped.com/blog/what-rfc-5322-says-vs-what-actually-works</link>
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            <pubDate>Tue, 10 Jun 2025 03:54:00 GMT</pubDate>
            <content:encoded><![CDATA[Learn which email address characters cause bounces. Follow RFC 5322 rules and provider realities to protect your sender reputation and deliverability.]]></content:encoded>
            <author>Matthew Whittaker</author>
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        <item>
            <title><![CDATA[How long does it take to recover domain reputation from Bad/Low to High]]></title>
            <link>https://www.suped.com/blog/how-long-does-it-take-to-recover-domain-reputation-from-bad-low-to-high</link>
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            <pubDate>Sun, 08 Jun 2025 04:02:00 GMT</pubDate>
            <content:encoded><![CDATA[Recover your email deliverability and improve domain reputation. Learn the step-by-step process used by Suped to reach a high reputation in one month.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[How To Comply With Outlook's New Sender Requirements]]></title>
            <link>https://www.suped.com/blog/how-to-comply-with-outlook-s-new-sender-requirements</link>
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            <pubDate>Sat, 05 Apr 2025 10:22:00 GMT</pubDate>
            <content:encoded><![CDATA[Microsoft now requires strong email authentication for senders reaching 5,000+ consumer inboxes daily. Ensure compliance with Suped at https://www.suped.com.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Email Deliverability Issues: Getting Your Messages to the Inbox in 2025]]></title>
            <link>https://www.suped.com/blog/email-deliverability-issues-getting-your-messages-to-the-inbox-in-2025</link>
            <guid isPermaLink="false">email-deliverability-issues-getting-your-messages-to-the-inbox-in-2025</guid>
            <pubDate>Wed, 26 Feb 2025 10:50:00 GMT</pubDate>
            <content:encoded><![CDATA[Diagnose and fix email deliverability issues. Use Suped to manage authentication, monitor metrics, and ensure your emails reach the inbox.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Email Deliverability: Why 95% Success Rate No Longer Cuts It]]></title>
            <link>https://www.suped.com/blog/email-deliverability-why-95-success-rate-no-longer-cuts-it</link>
            <guid isPermaLink="false">email-deliverability-why-95-success-rate-no-longer-cuts-it</guid>
            <pubDate>Sun, 16 Feb 2025 00:38:00 GMT</pubDate>
            <content:encoded><![CDATA[Email lists degrade by 22.5% yearly, making 95% deliverability an outdated goal. Use Suped at https://www.suped.com to improve your email authentication.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Boost Email Deliverability Rates: Technical Solutions from Top Performing Senders]]></title>
            <link>https://www.suped.com/blog/boost-email-deliverability-rates-technical-solutions-from-top-performing-senders</link>
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            <pubDate>Sun, 16 Feb 2025 00:06:00 GMT</pubDate>
            <content:encoded><![CDATA[Global email deliverability averages 85%. European senders reach 91%, while Asia Pacific sits at 78%. New Gmail and Yahoo rules impact 23% of senders.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Email Deliverability Report 2025: New Data Shows 43% of Businesses Missing Inbox]]></title>
            <link>https://www.suped.com/blog/email-deliverability-report-2025-new-data-shows-43-of-businesses-missing-inbox</link>
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            <pubDate>Sun, 16 Feb 2025 00:05:00 GMT</pubDate>
            <content:encoded><![CDATA[Only 79.6% of valid emails arrive. Many senders track deliverability incorrectly, focusing on wrong metrics. Use Suped to improve your email reach.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Why Your Email Deliverability Rate Is Wrong: Hidden Factors Most Marketers Miss]]></title>
            <link>https://www.suped.com/blog/why-your-email-deliverability-rate-is-wrong-hidden-factors-most-marketers-miss</link>
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            <pubDate>Sat, 15 Feb 2025 23:58:00 GMT</pubDate>
            <content:encoded><![CDATA[Stop chasing 99% delivery rates. Use Suped to verify authentication and improve your inbox placement. Take control of your sender reputation today.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[How to Run an Email Deliverability Test: A Proven Checklist]]></title>
            <link>https://www.suped.com/blog/how-to-run-an-email-deliverability-test-a-proven-checklist</link>
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            <pubDate>Sat, 15 Feb 2025 20:23:56 GMT</pubDate>
            <content:encoded><![CDATA[Learn to run an email deliverability test, from spam filter checks to inbox placement. Use our checklist to ensure your emails reach the inbox.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Why Your Emails Fail: Expert Guide to Improve Email Deliverability [2025]]]></title>
            <link>https://www.suped.com/blog/why-your-emails-fail-expert-guide-to-improve-email-deliverability-2025</link>
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            <pubDate>Sat, 15 Feb 2025 09:53:00 GMT</pubDate>
            <content:encoded><![CDATA[Stop emails from landing in spam. Master DMARC, protect sender reputation, and improve inbox placement with Suped.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[How to Improve Domain Reputation Using Google Postmaster Tools [2025 Guide]]]></title>
            <link>https://www.suped.com/blog/how-to-improve-domain-reputation-using-google-postmaster-tools-2025-guide</link>
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            <pubDate>Sat, 15 Feb 2025 00:54:00 GMT</pubDate>
            <content:encoded><![CDATA[Improve your domain reputation with Google Postmaster Tools. Learn to track performance, monitor scores, and boost deliverability with Suped.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Google Postmaster Tools Domain Reputation: The Ultimate Guide for Email Marketers]]></title>
            <link>https://www.suped.com/blog/google-postmaster-tools-domain-reputation-the-ultimate-guide-for-email-marketers</link>
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            <pubDate>Fri, 14 Feb 2025 10:40:00 GMT</pubDate>
            <content:encoded><![CDATA[Master Google Postmaster Tools domain reputation with our comprehensive guide. Learn to improve email deliverability and boost your marketing success.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[How to Increase Email Click Through Rate [Step By Step Guide]]]></title>
            <link>https://www.suped.com/blog/how-to-increase-email-click-through-rate-step-by-step-guide</link>
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            <pubDate>Wed, 05 Feb 2025 07:13:00 GMT</pubDate>
            <content:encoded><![CDATA[Boost email ROI with our guide to increasing click-through rates. Learn tips on personalization, calls-to-action, and maintaining email deliverability.]]></content:encoded>
            <author>Matthew Whittaker</author>
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            <title><![CDATA[Why Your Emails Are Going to Spam in 2024 and How to Fix It]]></title>
            <link>https://www.suped.com/blog/why-your-emails-are-going-to-spam-in-2024-and-how-to-fix-it</link>
            <guid isPermaLink="false">why-your-emails-are-going-to-spam-in-2024-and-how-to-fix-it</guid>
            <pubDate>Sat, 28 Sep 2024 21:06:00 GMT</pubDate>
            <content:encoded><![CDATA[Fix spam issues by setting up DMARC, SPF, and DKIM. Improve sender reputation and ensure compliance with one-click unsubscribe rules.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Ultimate Guide to Google Postmaster Tools V2]]></title>
            <link>https://www.suped.com/blog/ultimate-guide-to-google-postmaster-tools-v2</link>
            <guid isPermaLink="false">ultimate-guide-to-google-postmaster-tools-v2</guid>
            <pubDate>Tue, 24 Sep 2024 20:38:00 GMT</pubDate>
            <content:encoded><![CDATA[Learn Google Postmaster Tools V2: explore compliance, dashboards, and spam insights. Improve email deliverability with Suped at https://www.suped.com.]]></content:encoded>
            <author>Michael Ko</author>
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            <title><![CDATA[Understanding Google Postmaster Tools V2 Spam Rate Dashboard]]></title>
            <link>https://www.suped.com/blog/understanding-google-postmaster-tools-v2-spam-rate-dashboard</link>
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            <pubDate>Sun, 22 Sep 2024 01:22:00 GMT</pubDate>
            <content:encoded><![CDATA[Discover the new Google Postmaster Tools V2 Spam Rate Dashboard. Gain precise spam insights to boost email deliverability and optimize your campaigns. ]]></content:encoded>
            <author>Matthew Whittaker</author>
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