Summary
If you are responsible for emailing or digital marketing, you already know the importance of good technical practices such as SPF (Sender Policy Framework), DKIM (Domain Keys Identified Mail) and sender reputation. But have you ever heard of Email Content Fingerprinting? This discreet, often underestimated factor nevertheless plays an important role in your email deliverability.
At MailSoar, our expertise in deliverability and SEO allows us to reveal to you exactly what Email Content Fingerprinting is, how it can impact your emailing strategy and, above all, how you can prevent your campaigns from suffering as a result.
What is Email Content Fingerprinting?
In simple terms, fingerprinting consists of creating a kind of digital fingerprint of each email sent. This digital fingerprint is generated by different elements of your email: the text, the HTML structure, the links and even the images. It is a technique used by ESPs to identify and filter repetitive emails or emails that are too similar to spam.
Why do email service providers (ESPs) do this? Quite simply to quickly identify emails that are too similar and could be spam mail or unwanted promotional content. If your email is too similar to another one identified as spam, there is a high risk that it will never reach your recipients’ main inbox.
This monitoring does not only concern your marketing campaigns, but also your transactional business emails (notifications, confirmations, etc.) if they are too repetitive.
How do the public sports centers (ESPs) use this technology in practice?
To better understand the impact, here is how Gmail, Outlook and other ESPs use this fingerprinting method in their anti-spam strategy:
Rapid identification of repetitive content
When you send identical emails in bulk, the imprint created is easily spotted by ESPs. They use their database (fed in real time by users' spam reports) to check this imprint. As a result, your email can quickly end up in spam or in a “Promotions” folder.
Detailed analysis of variations in content
Slightly modifying the content of your emails is often not enough to fool these filters. Even a small modification, if it does not significantly change the entire email, will be detected as a simple variant and therefore potentially problematic for your deliverability.
What is the real impact on your deliverability?
Here are the main effects of fingerprinting on your email campaigns:
Automatic placement in Promotions or spam folder
If your emails are considered too similar to promotional content or spam, they are systematically directed to these secondary folders. The direct consequence is that your visibility drops, as do your open rates and interaction rates.
A reputation as a sender that is gradually deteriorating
Fingerprinting acts in the longer term by affecting your overall reputation. The more your emails are filtered, the less recipients interact with them. This low engagement further deteriorates your reputation, creating a vicious circle that even affects your essential communications such as transactional emails.
Our expert advice on how to prevent Email Content Fingerprinting
Fortunately, there are proven strategies for significantly reducing the impact of fingerprinting:
Really personalize your emails
Incorporate advanced personalization : the recipient's first name, recommendations tailored to their interaction history, or specific contextual elements. The aim is for each email to be perceived as unique by ESPs.
Change your HTML templates regularly
Vary your page layouts and avoid always reusing the same templates without modification. This way, you avoid sending repetitive signals to spam filters.
Perform regular A/B tests
By testing several variations of your emails, you can easily identify the formats that obtain better results in the face of spam filters. Then use this data to refine your future campaigns.
Avoid sending large numbers of identical items
Split your mailings into different segments and make small changes to each campaign. This strategy drastically reduces the likelihood of your emails being flagged as repetitive.
Use MailSoar to boost your deliverability 🚀
Do you need an in-depth analysis of your emails or expert support to avoid the pitfalls of Email Content Fingerprinting? Our MailSoar team analyzes your mailings and offers you a solution tailored to your specific context.
Contact us today for a personalized audit!
