Spammy follow-up email messages are turning off Amazon Marketplace shoppers. Shoppers who buy from Amazon's Marketplace typically like the convenience and prices. But many are also unhappy about the barrage of emails that sellers send them after the purchase, notes Fortune. It adds: Sellers deluge often inboxes with requests for product reviews, inquiries about how the process went, and sales pitches for more stuff. Considering the comments on social media, feedback from friends and family, and in posts in Amazon.com's customer service forum over the past two years, this problem is not getting any better. There appears to be no way to opt out of this email flood, which is odd, given Amazon's self-professed zeal for great customer service. One shopper in Amazon's customer forum thread posted a response from an Amazon service representative that apologized for the notifications and noted that the feedback had been forwarded to the company's "investigations team."