# Unique Opens for Email Marketing

**URL:** <https://community.hubspot.com/t/unique-opens-for-email-marketing/10978>\
**Category:** Email Marketing Tool\
**Created:** [November 20, 2018, 12:20am UTC](https://community.hubspot.com/t/unique-opens-for-email-marketing/10978 "2018-11-20T00:20:46Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![F\_Carron](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/f_carron/32/2490_2.png) [@F\_Carron](https://community.hubspot.com/u/F_Carron)\
**Post date:** [November 20, 2018, 12:20am UTC](https://community.hubspot.com/t/unique-opens-for-email-marketing/10978/1 "2018-11-20T00:20:46Z")

</div>

I see a big difference between Unique and Total opens, even in the first hour after I send the mail. It could be 1,000 unique, 2,500 total. Hard to believe people open my mail 1.5 times AFTER the first time. Are these Mail Forwards?

---

<div class="post-metadata">

**Author:** ![Phil\_Vallender](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/phil_vallender/32/48924_2.png) [@Phil\_Vallender](https://community.hubspot.com/u/Phil_Vallender)\
**Post date:** [November 20, 2018, 7:44am UTC](https://community.hubspot.com/t/unique-opens-for-email-marketing/10978/2 "2018-11-20T07:44:38Z")

</div>

Hi [@F\_Carron](https://community.hubspot.com/t5/user/viewprofilepage/user-id/73517)

Pixel-based tracking of email opens is notoriously unreliable and lots of factors can lead to false positives. The value for uniques is probably a lot more trust worthy than the total and I would focus on that if I were you.

Hope this helps.

---

<div class="post-metadata">

**Author:** ![EvaSquare](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/evasquare/32/89291_2.png) [@EvaSquare](https://community.hubspot.com/u/EvaSquare)\
**Post date:** [August 14, 2019, 5:24am UTC](https://community.hubspot.com/t/unique-opens-for-email-marketing/10978/3 "2019-08-14T05:24:53Z")

</div>

Hi Phil,

I have installed hubspot email tracking outlook add-in to track my emails. However, it keeps giving me false positives. The moment I go to sent items to check the email it notifies me that the email has been opened. I have already re-installed the plugin and blocked my IP in hubspot to troubleshoot. Is there anything else that I need to do to stop this from happening?