# Body is too similar to what you previously posted - even when body entropy is zero **URL:** \ **Category:** Product Support\ **Created:** [December 12, 2021, 4:48pm UTC](https://meta.discourse.org/t/body-is-too-similar-to-what-you-previously-posted-even-when-body-entropy-is-zero/211882 "2021-12-12T16:48:28Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![dachary](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/dachary/32/119731_2.png) [@dachary](https://meta.discourse.org/u/dachary)\ **Post date:** [December 12, 2021, 4:48pm UTC](https://meta.discourse.org/t/body-is-too-similar-to-what-you-previously-posted-even-when-body-entropy-is-zero/211882/1 "2021-12-12T16:48:28Z")
Hello, A 2.7.9 discourse instance has a zero entropy set to allow duplicate topics. ![image](https://global.discourse-cdn.com/meta/original/3X/d/4/d46721aaf6ab5e2249e940dd73ab7273ef103861.png) And it works fine when **two** topics are created via email even though the incoming email is 100% identical. However, when there are **three** identical topics in the same email batch, the third one is rejected. Here is an example of what shows in the **Received** tab of the mail admin panel: ![image](https://global.discourse-cdn.com/meta/original/3X/a/d/ad75e6750a8b16066eec7b981efce64957c940a7.png) The last mail shows in black, which indicates it was rejected. And when looking at the **Rejected** tab, it is indeed: ![](https://global.discourse-cdn.com/meta/original/3X/4/d/4d9a4540a1e50be12c4360c9b9323a2c7cd234b9.png) The reason is **Corps est trop similaire à ce que vous avez récemment posté** which is the french translation of **Body is too similar to what you previously posted** (in case there was any doubt about that 😉 ). Any idea about the reason for this unexpected behavior? --- _[View the full topic](https://meta.discourse.org/t/body-is-too-similar-to-what-you-previously-posted-even-when-body-entropy-is-zero/211882)._