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user: xiaoyang88 created: 2016-05-12 karma: 1 ETH Address: 0xA6ea58E8CAecfCc47DC8E57551d79748484D19bA submissions: Ask HN: Do you A/B test email drip campaigns? 1 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments