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Email Deliverability

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Solved
SBelz on February 16, 2026
Hi everyone. I have two active email campaigns and they both have high bounce back rates. When emails are sent out, they are causing in box shutdown from our sales team. What can be done to resolve the high bounce rate and stop the mailbox shutdown read more
0 upvote
6 Replies
Accepted solution
Hall of Famer | Partner
February 17, 2026 13:07
@SBelz you're not going to be able to solve this with email validation -- this is something different than what you described in your initial messa...read more
Solved
CPrescott30 on February 10, 2026
Hello, basically I'm trying to answer the question "What email infrastructure do I actually need?" for marketing emails with HubSpot. I've constantly seen and read "create an email sending subdomain" but it's fuzzy on if it's as simple as settin read more
0 upvote
4 Replies
Accepted solution
Hall of Famer | Partner
February 12, 2026 00:02
Hi @CPrescott30 , I find that these two articles explain quite well what the benefits of using subdomains are -- and which influence using one...read more
Solved
FourFold_Sltns on October 17, 2025
Hello, I'm hoping someone can help me follow best practices with a specific use case. Per I'm planning to set up a subdomain as my org's primary sending domain - something like mail.brand.com. This seems to be the recommended way to go for m read more
0 upvote
4 Replies
Accepted solution
Hall of Famer | Partner
October 17, 2025 12:53
Hi @FourFold_Sltns , As far as I know, you can't have it both ways – you need to connect and authenticate the domain you want to send from. ...read more
Solved
JCrossley on August 22, 2025
Hello! I have created a list of bounces to suppress for my client so they will not affect our open rates, along with them living in one place so the client can have a chance to update the bouncing email and have it added back to the general marketi read more
0 upvote
1 Reply
Accepted solution
Hall of Famer | Partner
August 22, 2025 16:10
Hi @JCrossley , A workflow enrolling based on 'Email is known' (enable re-enrollment for this filter) AND 'Email hard bounce reason is unknown...read more
Solved
SDijkstra0 on August 07, 2025
Hi hubspot community, We are using hubspot forms to capture leads from our website with a Demo request form. We have used workflows in order to reply to leads based on some criteria. If they meet the criteria we sent them a marketing campaign read more
0 upvote
1 Reply
Accepted solution
Hall of Famer | Partner
August 07, 2025 10:10
Hi @SDijkstra0 , When you open the marketing email and click into the Recipients tab → Not sent, what do you see there? If the...read more
Solved
SahilBahri on August 01, 2025
My marketing emails are sometimes landing in spam in gmail, and are coming as unverified in outlook with ' via bf05x.hubspotemail.net ' mentioned in the sender's email address. I tried sending multiple times, and without interacting with the e read more
Accepted solution
Hall of Famer | Partner
August 01, 2025 13:39
Hi @SahilBahri , That "via" is a sign that whatever authentication you have set up is not pulling through. Can you confirm that you foll...read more
Solved
EVatsev on May 23, 2025
Hi, When making lists of contacts I want to be able to exlude contacts where I get the message "There was an issue sending an email to this contact." I don't want to turn them into a marketing contact. How can I filter them out of a list whe read more
1 upvote
1 Reply
Accepted solution
Hall of Famer | Partner
May 23, 2025 08:48
Hi @EVatsev , There is no definitive filter for this error message, but you can get very close to finding all of these contacts with the below...read more
Solved
MortenU on May 08, 2025
Hi all, We’re experiencing a challenge with how HubSpot handles double opt-in, and I’d like to hear if others are facing the same. As it stands, double opt-in in HubSpot is applied globally and not differentiated by communication type. This read more
0 upvote
1 Reply
Accepted solution
Hall of Famer | Partner
May 08, 2025 06:04
Hi @MortenU , The product team has mentioned multiple times that they are currently working on better double opt-in functionalities – whether ...read more
Solved
fvovk on May 02, 2025
Hi As we use Exchange server ( multiple shared functional emails can be shared completely by team members ) with Outlook 365 Email client, I did not find Hubspot Email tool to be used with this combination. We can use some other Email client, bu read more
0 upvote
1 Reply
Accepted solution
Contributor | Diamond Partner
May 02, 2025 20:03
Hi! @fvovk You can always use the Outlook Email addon/extension or rute the personal accounts through to a shared inbox You can also connect the...read more
Solved
GCL on April 07, 2025
We previously used MailChimp and consistently saw email open rates around 40%. Since switching to HubSpot, our open rates have dropped significantly, and I’m trying to understand why. Recently, we ran an ad campaign where customers filled out a read more
2 upvotes
2 Replies
Accepted solution
Key Advisor | Elite Partner
April 07, 2025 17:25
Hi @GCL ! One point to consider is that each platform has its own "success" metrics. For an email to count as "opened" in HubSpot it must: Open...read more
Solved
JIgnacio2 on April 04, 2025
A few people flagged that they received error messages when clicking links in the email. I know there are issue with uBlock, so I turned my extension off, but the issue kept happening. I turned off my tracking settings for another test, and tha read more
0 upvote
4 Replies
Accepted solution
Top Contributor
April 04, 2025 17:55
Hi @JIgnacio2 , Yep, this happens more often than you'd think. When tracking is on, HubSpot rewrites your links through hubspotlinks.com . ...read more
Solved
LTill3 on March 27, 2025
We moved our domain to a new host this month , since when we no longer get notifications when a user submits a live chat, nor do we receive Hubspot marketing emails when we send test emails. It was previously all working fine.
0 upvote
3 Replies
Accepted solution
Top Contributor | Platinum Partner
March 30, 2025 10:27
@LTill3 This problem might be because of an email bouncing on the HubSpot end. I found a similar issue that was solved. https://community.hubspot....read more
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