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    <description>Playbooks for cold email and calendar outreach, from the team building Tantra.</description>
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    <lastBuildDate>Sun, 02 Aug 2026 00:00:00 GMT</lastBuildDate>
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      <title>Beyond open rates: the outreach KPIs that actually predict revenue</title>
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      <pubDate>Sun, 02 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[The three tier KPI framework for B2B outreach, with 2026 benchmarks and the equation that turns them into a pipeline forecast.]]></description>
      <category>Deliverability</category>
      <category>Cold Email</category>
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      <title>Cold Google Calendar outreach in 2026: hard limits, warmup, and ban triggers</title>
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      <pubDate>Sun, 02 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[Every hard limit for cold calendar outreach in 2026, the warmup protocol, the ban triggers, and the psychology behind a 65% accept rate.]]></description>
      <category>Calendar Outreach</category>
      <category>Deliverability</category>
      <category>Cold Email</category>
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      <title>Cold Google Calendar outreach in 2026: hard limits, warmup, and ban triggers</title>
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      <pubDate>Sat, 01 Aug 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[Every hard limit for cold calendar outreach in 2026, the warmup protocol, the ban triggers, and the psychology behind a 65% accept rate.]]></description>
      <category>Calendar Outreach</category>
      <category>Deliverability</category>
      <category>Cold Email</category>
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      <title>Google Workspace deliverability: the setup manual and the error codes that tell you what broke</title>
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      <pubDate>Wed, 29 Jul 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[How to configure SPF, DKIM and DMARC on Google Workspace, warm a mailbox properly, and read the SMTP error codes that tell you what actually broke.]]></description>
      <category>Deliverability</category>
      <category>Cold Email</category>
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      <title>From registration to revenue: a playbook for B2B webinar attendance</title>
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      <pubDate>Wed, 22 Jul 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[Why only half your registrants show up, what actually moves that number, and how to run the reminder, live and follow up phases.]]></description>
      <category>Webinars</category>
      <category>Calendar Outreach</category>
      <category>Cold Email</category>
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      <title>How to land in the Gmail Primary inbox during cold outreach</title>
      <link>https://usetantra.com/blog/gmail-primary-inbox-cold-outreach-2026</link>
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      <pubDate>Wed, 15 Jul 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[Gmail makes two decisions about your email. The stop words that matter, sorted into three buckets, and the compliance trade off nobody mentions.]]></description>
      <category>Deliverability</category>
      <category>Cold Email</category>
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      <title>Email open tracking is broken. Here is what to measure instead</title>
      <link>https://usetantra.com/blog/why-we-dont-track-email-opens</link>
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      <pubDate>Wed, 24 Jun 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[Pixels now fire for privacy proxies and security scanners, not readers. Why the metric broke, what it still costs, and the three signals to read instead.]]></description>
      <category>Deliverability</category>
      <category>Cold Email</category>
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      <title>Cold email marketing in 2026 with AI: how spam filters actually work</title>
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      <pubDate>Wed, 10 Jun 2026 00:00:00 GMT</pubDate>
      <description><![CDATA[How spam filters evaluate email in 2026, why AI written copy gets flagged, and the psychology that separates a 2% reply rate from 15%.]]></description>
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      <category>Cold Email</category>
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