# Hard Bounce wrong calculation

**URL:** <https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654>\
**Category:** Email Deliverability\
**Tags:** free\
**Created:** [June 28, 2021, 4:41am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654 "2021-06-28T04:41:31Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![hamedfadaly](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/hamedfadaly/32/82448_2.png) [@hamedfadaly](https://community.hubspot.com/u/hamedfadaly)\
**Post date:** [June 28, 2021, 4:41am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/1 "2021-06-28T04:41:31Z")

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I was given a notice by HubSpot that my hard bounce rate is 5.73% and triggered a warning; while in the analysis part, the hard bounce is only 4.9%. Any explanation for this?

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [June 28, 2021, 4:47am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/2 "2021-06-28T04:47:48Z")

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Hi @hamedfadaly,

Could you share screenshots of the notice and the current number?

My hypothesis here’s that your email was still being delivered. At the time of the notice, the hard bounce rate was 5.73%. With more emails being successfully delivered shortly after you saw that number, this hard bounce rate went down to 4.9%.

Best regards

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**Author:** ![hamedfadaly](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/hamedfadaly/32/82448_2.png) [@hamedfadaly](https://community.hubspot.com/u/hamedfadaly)\
**Post date:** [June 28, 2021, 5:46am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/3 "2021-06-28T05:46:46Z")

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Thank you for responding, but this is not the case. I have had this issue since last Friday.

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [June 28, 2021, 5:48am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/4 "2021-06-28T05:48:04Z")

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Hi @hamedfadaly,

Could you please share screenshots of what you’re looking at? There are multiple locations in HubSpot where this information is displayed so it’s hard to tell without having more details.

Best regards

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**Author:** ![hamedfadaly](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/hamedfadaly/32/82448_2.png) [@hamedfadaly](https://community.hubspot.com/u/hamedfadaly)\
**Post date:** [June 28, 2021, 5:48am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/5 "2021-06-28T05:48:47Z")

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![hamedfadaly_0-1624859318748.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/d/4/d41f55e95fcf58c6d6956af44ca28a07ceaeb41c.png)

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**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [June 28, 2021, 5:53am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/6 "2021-06-28T05:53:08Z")

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Hi @hamedfadaly,

There is a date range filter applied to the your delivery metrics – I’d assume that this is where the discrepancy comes from. Can you check different date ranges (all time is likely the one).

In any case, the actual hard bounce rate (whether it’s 4 or 5%) is not the issue here. You might want to look into [email verification tools](https://bloggingwizard.com/email-verification-tools/) before sending your next emails. With tools, you can “outsource” your hard bounces and identify them before they happen.

Best regards!

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**Author:** ![Marcus10](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/marcus10/32/5258_2.png) [@Marcus10](https://community.hubspot.com/u/Marcus10)\
**Post date:** [October 30, 2021, 8:35am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/7 "2021-10-30T08:35:29Z")

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Hey @karstenkoehler

You are very right. [Email Verification Tools](https://www.accuwebhosting.com/blog/top-10-bulk-email-list-verification-validation-services-compared/) are very much needed to remove Hard Bounce and Soft Bounce.

They run Syntax Check, Domain/MX Records Check, Spam Trap Detection, find blocklisted Email Addresses, and deep-level extended SMTP verifications.

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<div class="post-metadata">

**Author:** ![hamedfadaly](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/hamedfadaly/32/82448_2.png) [@hamedfadaly](https://community.hubspot.com/u/hamedfadaly)\
**Post date:** [June 28, 2021, 6:07am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/8 "2021-06-28T06:07:27Z")

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Although it’s a tiny difference but it does affect me here, as I have received a warning notice, which resulted in suspending a previous HubSpot account when I received similar message before. Problem is I don’t outsource emails and all those sent by HubSpot are generated via website subscription forms or Facebook leads forms which are integrated with HubSpot. Nevertheless, bouncing rate is as you see, and for sure it’s nonsense to have that rate of wrong emails sources from our legal marketing tools. Moreover, I used email verifier and most of the opt-out list went through and had no problem. This has become a complicated issue, as I’m now warned that the email marketing will be suspended again, and I think I did all necessary to have this solved before, but all in vain.

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<div class="post-metadata">

**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [June 28, 2021, 6:16am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/9 "2021-06-28T06:16:15Z")

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Hi @hamedfadaly,

I understand your frustration, however I’m not HubSpot support. For context, HubSpot uses automated systems to make sure that all users are following HubSpot’s [Acceptable Use Policy](https://legal.hubspot.com/acceptable-use)and [Terms of Service](https://legal.hubspot.com/terms-of-service). This process is important in protecting customers’ experience with the platform. The thresholds might seem strict but that’s entirely HubSpot’s decision.

To come back to your earlier question, I think that the discrepancy results from the different date range and the filter applied to your current view.

Best regards

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<div class="post-metadata">

**Author:** ![hamedfadaly](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/hamedfadaly/32/82448_2.png) [@hamedfadaly](https://community.hubspot.com/u/hamedfadaly)\
**Post date:** [June 28, 2021, 6:29am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/10 "2021-06-28T06:29:13Z")

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Unfortunately not… This date range is since I started the account up to date.

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<div class="post-metadata">

**Author:** ![hamedfadaly](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/hamedfadaly/32/82448_2.png) [@hamedfadaly](https://community.hubspot.com/u/hamedfadaly)\
**Post date:** [June 28, 2021, 6:31am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/11 "2021-06-28T06:31:38Z")

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I even got back to date before I created the account - which technically should be allowed - but surprisingly it’s the same.

 ![hamedfadaly_0-1624861889463.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/6/9/69c4b67a6a42f5ef750cbf8333128a2768eb04ad.png)

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<div class="post-metadata">

**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [June 28, 2021, 6:52am UTC](https://community.hubspot.com/t/hard-bounce-wrong-calculation/39654/12 "2021-06-28T06:52:36Z")

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Hi @hamedfadaly,

This might be a bug in the tool then. Unfortunately, it likely won’t affect how HubSpot is assessing your email performance.

Best regards!
