Uncovering the Reasons Behind HubSpot Hard Bounces

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Swandana is Business MBA also world marketing researcher since 2011. Hope my info can help readers all around the world. 

Are you familiar with email marketing and the various ways in which it can be used to reach out to your customers? If so, you’ve likely heard of a HubSpot Hard Bounce. But what exactly is a HubSpot Hard Bounce and how can it help your business? A HubSpot Hard Bounce is an email delivery failure that occurs when your email bounces off the recipient’s server due to a permanent delivery error. This could be caused by an invalid or defunct email address or a problem with the recipient’s server. In this blog, we’ll discuss what a HubSpot Hard Bounce is, how it can affect your email marketing, and how you can avoid it.

Why Does a Hard Bounce Happen?

Have you ever sent an email to someone, only to get a “hard bounce” message back? It can be a bit of a mystery as to why this happens, and how you can prevent it from happening again in the future. In this blog post, we’ll take a look at what a “hard bounce” is, why it happens, and how you can avoid it when sending emails. First of all, let’s start by defining what a hard bounce is. A hard bounce is an email message that has been rejected by the recipient’s email server. This means that the email message was undeliverable and will not be delivered.

This can happen for a variety of reasons, such as a typo in the email address, the recipient’s mailbox being full, or the email address no longer being active. One of the most common causes of hard bounces is an incorrect email address. This is often the result of a typo, but it can also be due to a person changing their email address and forgetting to update their contact information. If this happens, the email won’t make it to the intended recipient, and a hard bounce will occur. Another common cause of hard bounces is when the recipient’s mailbox is full.

All email accounts have a limit on how much storage they can use, and if this limit is reached, new emails will not be accepted. This is why it’s important to regularly delete old emails, or to upgrade to a plan with more storage. Finally, a hard bounce can happen if the recipient’s email address is no longer active. This could be because the person has closed their account, or moved to a different email provider. In this case, the email will not be delivered, and a hard bounce will occur.

Now that we know what a hard bounce is and why it happens, let’s look at how you can avoid them. The best way to prevent hard bounces is to make sure that your contact list is up-to-date and accurate. This means regularly checking for typos and email addresses that are no longer active.

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Using a service like HubSpot can help you keep your contact list organized and up-to-date. HubSpot can detect typos and other common errors, as well as alert you when an address is no longer valid.

This way, you can update your contact list and ensure that all emails are reaching their intended recipient. You should also make sure that your emails are sent in a timely manner. If you’re sending emails too frequently or too far in advance, your emails may be rejected by the recipient’s email server. This is because the server may think that your emails are spam or junk, so it will reject them. Finally, if you’re sending emails to many people at once, you should use a service like HubSpot to send your emails.

This way, you can be sure that all emails are sent to the correct address and that they reach the intended recipient. In conclusion, hard bounces can be a bit of a mystery, but understanding why they happen and how to prevent them can help you ensure that your emails reach their intended recipient. By making sure that your contact list is up-to-date, sending emails in a timely manner, and using a service like HubSpot, you can reduce the number of hard bounces you receive and ensure that your emails are delivered without issue.

Invalid Email Addresses

An invalid email address or a “hard bounce” is when an email address is bounced back to the sender as it could not be delivered. This could be due to a number of reasons, such as the address is incorrect, the recipient’s mailbox is full, or the address is blocked by the recipient’s email provider. When this happens, it’s important to take action with HubSpot to ensure your communication isn’t affected. By marking the email address as a hard bounce, you can ensure that no further emails will be sent to that address. This can help protect your sender reputation and help prevent spam filters from blocking your messages.

hubspot hard bounce

Incorrect Email Formats

Do you know what a hard bounce is? It’s an email error that occurs when an email is sent to an incorrect or non-existent email address. It can be a real headache for marketers, as it can be difficult to track down the root cause of a hard bounce. Fortunately, HubSpot provides a tool that can help you identify and correct incorrect email formats, preventing hard bounces and preserving your sender reputation. With HubSpot, you can quickly and easily identify any incorrect email formats in your database, and make sure your email campaigns reach the right people.

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How to Avoid Hard Bounces with HubSpot

When it comes to email marketing, one of the most important things to keep in mind is avoiding hard bounces. A hard bounce is when an email is sent to an invalid address, either because the email address is no longer in use or because it was typed incorrectly. The result is that the email is never received by the intended recipient, and it can have serious implications for your email marketing efforts. Fortunately, there are steps you can take to avoid hard bounces with HubSpot. Here’s what you need to know.

Use a Quality List The most important step you can take to avoid hard bounces is to make sure you are using a quality list of email addresses. This means that you should only be sending emails to people who have explicitly opted-in to receive emails from you. If you are buying a list of email addresses or renting a list, it is important to make sure that the list is verified and accurate. You can also use a double opt-in process to ensure that you are sending emails to valid and active email addresses.

Regularly Clean Your List It is important to regularly clean your list to remove any invalid or inactive email addresses. You can do this manually by checking each email address one by one, or you can use an email list cleaning service to automatically remove any bad emails from your list. This will help you avoid sending emails to invalid email addresses and ensure that your emails are reaching their intended recipients.

Use an Email Validation Service Another way to avoid hard bounces is to use an email validation service. These services will help to validate the email addresses on your list and check them for accuracy. This will help to ensure that your emails are being sent to valid and active email addresses, which will help to reduce the number of hard bounces you receive. Set up an Email Bounce Handler If you are sending emails through HubSpot, you can set up an email bounce handler to help you manage your bounced emails.

This will allow you to automatically remove invalid email addresses from your list, preventing you from sending emails to invalid addresses in the future. Monitor Your Email Performance Finally, it is important to monitor your email performance. This will help you to identify any issues with your emails, such as hard bounces or unsubscribes, that may be impacting your email deliverability. By monitoring your email performance, you can take steps to address any issues and improve your email deliverability.

By following these steps, you can ensure that you are sending emails to valid and active email addresses and avoid hard bounces with HubSpot. Using a quality list, regularly cleaning your list, using an email validation service, setting up an email bounce handler, and monitoring your email performance are all important steps to take to ensure that your emails are reaching their intended recipients.

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Validate Email Addresses

Email validation is an important part of any email marketing strategy. Without it, you risk sending your emails to invalid addresses, leading to “hard bounces” and a decrease in your email deliverability. That’s why it’s so important to use a tool like HubSpot to validate your email addresses. Not only does HubSpot give you an easy way to check if an address is valid, but it also helps you identify potential hard bounces before you send your message. That way, you can reduce the risk of damaging your email reputation and ensure that your messages land in the inboxes of your intended recipients.

Test Email Formats

Your email campaigns can go awry if you don’t pay attention to the right email formats. This is especially true when using HubSpot, as their hard bounce settings can be unforgiving. To ensure that your emails are delivered properly, it’s important to make sure you use the correct email formats when you are setting up your campaigns. This way, you can avoid the dreaded hard bounces that can damage your sender reputation, and instead get your emails delivered to the right people.

Monitor Email Performance

Keeping track of your email performance is an important part of any successful digital marketing strategy. With HubSpot’s Hard Bounce feature, you can monitor the performance of your email campaigns and ensure that your emails are reaching the right people. Hard Bounce allows you to identify and remove invalid email addresses from your contact list, helping you to improve your deliverability and email engagement. With this feature, you can ensure that your emails are reaching their intended recipients, and that you’re not wasting valuable resources on sending emails to invalid addresses.


It’s not easy to get a handle on HubSpot’s hard bounces, but one thing is for sure: if you want to keep your email list up-to-date, you’ll need to keep a close eye on them. Hard bounces are essentially a sign that something is wrong and that you need to take action in order to ensure that your emails are reaching their intended recipients. Keeping an eye on your hard bounce rate is the best way to make sure your emails are as effective as possible.”


What is a HubSpot hard bounce?
A hard bounce is an email message that has been returned to the sender because the recipient’s address is invalid. In HubSpot, hard bounces are marked as permanent failures, which means they can’t be re-sent and are marked as undeliverable in the contact’s activity log.

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