FYI, camelcamelcamel gets around this emailing users link to a special page on their (camelcamelcamel.com) site that is just a redirect to the product page on Amazon. Users see a brief message "Thanks for using Camel Camel Camel" or something shortly before being redirected.

Unless the user takes a concrete action to confirm the redirect, that is not allowed. Under Disqualified Purchases:

> (e) any Product purchased by a customer who is referred to an Amazon Site by a link that sends users indirectly to the Amazon Site via an intermediate site, without requiring the customer to click on a link or take some other affirmative action on that intermediate site (a “Redirecting Link”),

Oh, so that's why they do it that way!

Thank you for heads-up. Didn't find anything related to "not emailing affiliate links"... Would you be able to point me to the section you're referring to?

You must not have been looking very hard. Searching for "email" on the policy page gives you:

> Responsibility for Your Site > > 5. You will not engage in any promotional, marketing, or other advertising activities on behalf of us or our affiliates, or in connection with the Amazon Site or the Associates Program, that are not expressly permitted under the Associates Operating Agreement. For example, you will not engage in any promotional, marketing, or other advertising activities in any offline manner, including by using any of our or our affiliates’ trademarks or logos (including any Amazon Mark), any Content, or any Special Link in connection with an offline promotion or in any other offline manner (e.g., in any printed material, mailing, SMS, MMS, email or attachment to email, or other document, or any oral solicitation).

Did you read the part of their policy that says you can't use the affiliate API for a price monitoring tool?

that's part of their mobile app policy