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I built a cold email platform with built-in inbox placement testing

一个内置收件箱投放测试功能的冷邮件平台，帮助营销人员和销售团队验证邮件能否进入收件箱并提升打开率
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为什么值得关注

解决冷邮件送达率低的核心痛点，通过实时测试优化投放效果

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