# Sendability issues... Hubspot send IP is blocklisted

**URL:** <https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041>\
**Category:** Email Marketing Tool\
**Created:** [August 31, 2018, 2:07pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041 "2018-08-31T14:07:49Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 2:07pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/1 "2018-08-31T14:07:49Z")

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We recently sent out an important email to known contacts (who regularly receive direct emails from us) from a known sender on our team, “Ken.” Despite these contacts always responding to direct emails from “Ken,” the marketing email from “Ken” to about 250 confirmed contacts resulted in only a 20% open rate (a minimalist email with only 2 links and 2 images). A random sample of 10 recipients found that 9 did not receive the email -- and the email was also **not found** in their junk or spam folder.  
Our connected domain’s DNS is properly set up according to HS directions, and our IT team has confirmed this several times.  
Sending a test email to MXtoolbox resulted in a failure of proper TXT and DKIM settings, however, SendForensics scored deliverability above 70%.

We’ve been noticing a slow decline of open rates over the past year, but this is getting really serious:  
A significant percentage of 250+ people who regularly respond to emails from us, appear to be not getting a marketing email sent from Hubspot.  
What steps should we consider to fix this? And please, **DO NOT RESPOND** with something like, “have their IT department allow list” or something like that… because **THEY ARE** getting individual emails sent by “Ken” and the rest of our team.

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 2:15pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/2 "2018-08-31T14:15:53Z")

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Add three more people, just reported this morning, that did not receive the email, and also not in any Junk or Spam folder.

What’s going on Hubspot?

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**Author:** ![paxton](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/paxton/32/65154_2.png) [@paxton](https://community.hubspot.com/u/paxton)\
**Post date:** [August 31, 2018, 2:33pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/3 "2018-08-31T14:33:38Z")

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If you make a list given the criteria [in this post](https://community.hubspot.com/t5/Email-Marketing/How-to-bring-up-a-snowballing-open-rate/td-p/187027) how many contacts appear on it?

Ultimately, if you stop sending to whatever amount of contacts that is (which have an ROI of virtually 0) your overall open rate will rise, and you will minimize spam folder placement and/or bouncing due to graymail.

Also, DKIM is a no brainer. In your post you mentioned that MXtoolbox failed DKIM. Please ensure that you have set up both the TXT and the two CNAME records for proper DKIM authentication, and that those values match what is in your domain manager _exactly_ [https://knowledge.hubspot.com/articles/kcs\_article/cos-general/what-is-the-updated-process-for-conne…](https://knowledge.hubspot.com/articles/kcs_article/cos-general/what-is-the-updated-process-for-connecting-my-email-sending-domain)

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 2:46pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/4 "2018-08-31T14:46:08Z")

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@paxton

I think you misunderstood the issue. (and I did mention in the opening post that our DNS settings have been confirmed seveal times)

These are **existing** contacts in our CRM who regularly receive and respond to direct emails from"ken@ourdomain".

A significant percentage of these contacts did not receive the marketing email, sent from “ken@ourdomain”. No bounces, none in junk folders, none in spam folders.

Clearly, these emails are being quarantined by a firewall or enterprise spam filter… despite direct emails from “ken@ourdomain” being allowed through to the recipient.

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<div class="post-metadata">

**Author:** ![paxton](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/paxton/32/65154_2.png) [@paxton](https://community.hubspot.com/u/paxton)\
**Post date:** [August 31, 2018, 2:51pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/5 "2018-08-31T14:51:46Z")

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I understood that these email addresses exist.

Quarantining, black-hole bounces, being caught in a firewall/“enterprise spam filter”, _and_ spam folder placement are all generally symptoms of the same root issue… graymail, or a low overall open rate.

Your marketing/sales email has a different reputation than whatever system you use for direct emails, and if for some reason that reputation has issues the first thing you are going to want to do is remove historically low engaged contacts. Otherwise, your ability to deliver to the **engaged** may be compromised.

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 2:56pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/6 "2018-08-31T14:56:21Z")

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How would an email from someone with whom these recipients regularly engage, fall into a graymail hole?

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<div class="post-metadata">

**Author:** ![paxton](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/paxton/32/65154_2.png) [@paxton](https://community.hubspot.com/u/paxton)\
**Post date:** [August 31, 2018, 3:02pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/7 "2018-08-31T15:02:03Z")

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Very few can speak to the specifics of Gmail’s algorithm for inbox placement but, in general, it all depends on a sender’s **overall** open/click/reply rate. (average of all Gmail users)

If that rate falls below a certain threshold, then it will result in placement in other places besides the inbox. If it goes past some other threshold (lower than the former) it may not matter if that specific user has engaged.

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 3:04pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/8 "2018-08-31T15:04:23Z")

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Where did Gmail come into this?

These are corporate recipients, on a wide range of email systems.

In fact, the few @gmail recipients are among the only contacts who are reliably getting the emails.

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<div class="post-metadata">

**Author:** ![paxton](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/paxton/32/65154_2.png) [@paxton](https://community.hubspot.com/u/paxton)\
**Post date:** [August 31, 2018, 3:29pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/9 "2018-08-31T15:29:28Z")

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Any domain that uses Google suite will use the same anti spam engine.

Microsoft, and Yahoo, just to name a few all use similar engines.

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 3:40pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/10 "2018-08-31T15:40:49Z")

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So here’s the problem. The IP we’re paying Hubspot to use for email marketing is blocklist

 ![blacklist.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/9/8/98a7fa5ac3fa8e843baedecafbe0153e00744a13.png)

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 4:07pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/11 "2018-08-31T16:07:08Z")

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Our ticket history shows this is not the first time we’ve had issues with send IP’s being blocklist and also not the first time with that specific IP.

Wonderful, we’re paying Hubspot to have our email domain associated with blocklist IP’s… just great.

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 4:10pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/12 "2018-08-31T16:10:18Z")

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On a support chat; Hubspot KNEW that IP was blocklist but didn’t remove it from the pool of servers sending emails.

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<div class="post-metadata">

**Author:** ![MFrankJohnson](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/mfrankjohnson/32/22490_2.png) [@MFrankJohnson](https://community.hubspot.com/u/MFrankJohnson)\
**Post date:** [August 31, 2018, 4:23pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/13 "2018-08-31T16:23:31Z")

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QQ @IVRCMO, is that IP a dedicated IP you guys are paying for separately, or a HubSpot community IP address?

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<div class="post-metadata">

**Author:** ![IVRCMO](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/ivrcmo/32/29368_2.png) [@IVRCMO](https://community.hubspot.com/u/IVRCMO)\
**Post date:** [August 31, 2018, 4:25pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/14 "2018-08-31T16:25:43Z")

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It’s not dedicated.

But also not our first time having issues with that specific IP.

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**Author:** ![Iryna](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/iryna/32/38114_2.png) [@Iryna](https://community.hubspot.com/u/Iryna)\
**Post date:** [August 13, 2019, 7:16pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/15 "2019-08-13T19:16:13Z")

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Hi there! Was this ever resolved for you? We are encountering the same exact issue.

I wonder how many customers are considering switching to another ESP because of this. Thank you!

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<div class="post-metadata">

**Author:** ![MFrankJohnson](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/mfrankjohnson/32/22490_2.png) [@MFrankJohnson](https://community.hubspot.com/u/MFrankJohnson)\
**Post date:** [August 13, 2019, 7:49pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/16 "2019-08-13T19:49:51Z")

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- see [[Resources] Email Deliverability](https://community.hubspot.com/t5/Email-Deliverability/Resources-Email-Deliverability/m-p/210456/highlight/true#M1847)

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<div class="post-metadata">

**Author:** ![paxton](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/paxton/32/65154_2.png) [@paxton](https://community.hubspot.com/u/paxton)\
**Post date:** [August 31, 2018, 4:32pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/17 "2018-08-31T16:32:25Z")

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SORBS is a blocklist, which is a little different than a blocklist. They aim to put all marketing email shared IP’s on their blocklist. HubSpot sends marketing email through shared IP’s so they are accomplishing their aim by putting us on their blocklist.

Fortunately, SORBS listings cause virtually zero bounces (quarantines, spam folder placement, etc…). For example the SORBS bounce rate last month was 0.0011% of sends on affected IPs in August. This is low because the recipients that use SORBS service to filter spam are also agreeing to block third-party-sent marketing email, which many IT security professionals deem to be too aggressive.

They are rare, but if you are actually seeing bounces that reference SORBS, in general my advice would be to respect the security systems that the recipient put in place to protect their inbox. However, in the case that the recipient themselves expresses to your organization that they want your email, then you should--and I’m sorry for saying this--have them allowlist your portal’s marketing IP’s. They would need to make an exception for our marketing email as it is against their general email policy.

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<div class="post-metadata">

**Author:** ![Lanyana](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/lanyana/32/2401_2.png) [@Lanyana](https://community.hubspot.com/u/Lanyana)\
**Post date:** [October 22, 2019, 3:18am UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/18 "2019-10-22T03:18:06Z")

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Weare having the same issue. we cannot send to any gmail or Office 360. Gmail make up 48K of our database.

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<div class="post-metadata">

**Author:** ![TMc1](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/tmc1/32/2490_2.png) [@TMc1](https://community.hubspot.com/u/TMc1)\
**Post date:** [February 12, 2021, 2:35pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/19 "2021-02-12T14:35:11Z")

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I am having this same issue - did you ever get this resolved? This is NOT GOOD.

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<div class="post-metadata">

**Author:** ![PamCotton](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/pamcotton/32/47916_2.png) [@PamCotton](https://community.hubspot.com/u/PamCotton)\
**Post date:** [February 12, 2021, 10:30pm UTC](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041/20 "2021-02-12T22:30:26Z")

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Hello @TMc1 , did the solution not worked on your end? The more information, screenshots, and details you can provide, the better I can advise on the next steps.

Thank you,

Pam

[Next page](https://community.hubspot.com/t/sendability-issues-hubspot-send-ip-is-blocklisted/10041.md?page=2)
