If you want to prevent HubSpot from stopping your email campaigns and improve your overall email deliverability, you've come to the right place
Why is email deliverability crucial for B2B marketing?
Email deliverability is a key success factor in B2B marketing, as only delivered messages can have an impact. HubSpot monitors the sending process and automatically cancels campaigns if the bounce rate - i.e. the proportion of failed deliveries - is too high.
This protects your sender reputation and prevents your domain from ending up on blacklists. A high bounce rate signals potential abuse or poor list maintenance to Internet Service Providers (ISPs) and can lead to legitimate emails being rejected. Therefore, deliverability is not only crucial for reach, but also for the long-term effectiveness of your email marketing.
What should you do after a mailing has been canceled
Quick and systematic action is required after an abandoned mailing. Use tools such as ZeroBounce or similar services to check your recipient list for invalid or risky addresses and remove them. It is then advisable to clone the email and resend it with the cleaned-up list. This will ensure that you only write to valid contacts and minimize the risk of further delivery problems. Regular list maintenance and the use of specialized validation tools are essential to avoid future mailing failures.
If you feel unsure, please contact us and we will be happy to provide you with operational and strategic support.
Monitoring, analysis and continuous improvement of deliverability
Effective monitoring of delivery rates is essential in order to identify and rectify problems at an early stage.
Create workflows to turn contacts that are hard-bounced or deemed irrelevant by ZeroBounce into non-marketing contacts. You could also remove these contacts from the CRM altogether. You can also add filters to your lists that exclude these contacts by default.
HubSpot offers detailed reports on bounces, opens and clicks, which should be analyzed regularly.
A well-maintained and segmented recipient list is the key to high deliverability. You should also regularly remove inactive or unengaged contacts.
Technical basics: authentication and infrastructure in HubSpot
The technical configuration of your email infrastructure has a significant impact on deliverability. Make sure that you have correctly set up SPF, DKIM and DMARC for your sender domain. These authentication procedures signal to ISPs that your emails are legitimate and protect against spoofing and phishing.
Use the server settings recommended by HubSpot and regularly check the integrity of your technical infrastructure. When migrating or changing domains, these settings should always be checked and adjusted if necessary.
Content optimization for better delivery rates and engagement
Not only the technology, but also the content of your emails influences deliverability. Avoid spam trigger words, focus on a personalized approach and relevant content. Pay attention to balanced text/image ratios and optimized subject lines.
High engagement rates (openings, clicks, responses) in turn have a positive effect on the reputation of your sender domain. Regularly test different variants (A/B testing) and analyze which content is best received by your target group.
