How Honeypots and Spam Traps Can Sabotage Your Email Campaigns

Apr 4, 2024 | Blog

Ever hit send on a perfectly crafted email campaign, only for it to vanish into the abyss? As an email sender, you live in fear of spam filters and low deliverability rates.

Beyond the well-known challenges of spam filters, have you considered the potential impact of less readily apparent threats on your email campaign success? These threats, known as honeypots and spam traps, can significantly hinder your deliverability rates.

These deceptive tactics can harm your sender reputation, landing your emails in the junk folder or worse, getting you blacklisted. Let’s delve into what these email traps are and how they can impact your campaigns.

Honeypots: The Luring Deception

In cyber security, a honeypot is a mechanism used to detect and deflect threats by creating a realistic environment that may lure hackers. In the world of emails, they come in the form of email addresses that look legitimate, but in reality, they don’t belong to real people.

These fake email addresses are meticulously crafted and designed to appear legitimate, yet they are not associated with any actual recipient. Security researchers strategically deploy honeypots to identify spammers.

As there is no way that a real person signed up to your newsletter list with the email address, security researchers conclude that you’re sending spam, if the address receives emails from you.

Unfortunately, unsuspecting email senders can be duped into including these addresses in their campaigns. This can occur through two primary methods. Firstly, automated harvesting techniques employed by malicious actors might inadvertently collect honeypot addresses alongside valid ones. Secondly, poorly maintained email lists that haven’t been cleansed of inactive or outdated entries can harbor honeypots.

The critical consequence of inadvertently sending emails to a honeypot is the negative impact it has on your sender reputation. ISPs and anti-spam filters view such activity with suspicion, potentially leading to a decline in your overall email deliverability rates.

Spam traps: The Abandoned Address

Internet Service Providers (ISPs) employ another tactic to combat spam – spam traps.

These are essentially email addresses that were once legitimate but have become inactive. Over time, email addresses can become defunct due to a variety of reasons, such as account abandonment or changes in the user’s primary email address. ISPs strategically reactivate these dormant addresses and monitor them for incoming email activity.

The purpose of this strategy is to identify senders who continue to engage in spamming practices. If your email campaign inadvertently lands in a reactivated spam trap, it can have a significant detrimental effect on your sender score. 

ISPs and anti-spam filters utilize sender scores to assess the legitimacy and trustworthiness of email traffic. A single hit to a spam trap can significantly lower your score, potentially leading to future emails being flagged as spam and relegated to junk folders.

You can easily avoid spam traps by handling and deleting your email bounces.

Why Should You Care?

Honeypots and spam traps might seem like minor annoyances, but they can have real consequences:

Reduced Deliverability:

ISPs use sender reputation to determine where your emails land. Hits on honeypots and spam traps can significantly lower your score, leading to emails getting filtered as spam.

Increased Costs:

Many email platforms charge based on the number of delivered emails. Low deliverability means you’re essentially paying for emails that never reach your target audience.


Repeatedly hitting honeypots or spam traps can get you blacklisted by ISPs, making it nearly impossible to get your emails delivered at all.

How to Avoid the Traps

Here’s how to steer clear of these email landmines:

List Hygiene:

Regularly clean your email lists. Remove inactive addresses, misspelled entries, and any addresses you suspect might be honeypots.

Double Opt-In:

Use confirmed opt-in processes to ensure you’re only sending emails to people who want them.

Data Verification:

Consider using data verification services to check the validity of your email lists.

Monitor Your Sender Reputation:

Track your sender score with online tools and take steps to improve it if it dips.


By familiarizing yourself with the deceptive tactics of honeypots and spam traps, and by implementing proactive strategies to circumvent them, you can safeguard the deliverability of your email campaigns. This, in turn, ensures your meticulously crafted messages reach their intended audience and generate the desired results.

Remember, a pristine sender reputation serves as the cornerstone of successful email marketing endeavors. It serves as the cornerstone of successful campaigns, directly influencing whether your emails land in inboxes or the dreaded spam folder.

To mitigate these risks and navigate the email landscape with confidence, prioritize maintaining a clean sender reputation. By adopting the strategies outlined within this blog post, you can effectively steer clear of the pitfalls posed by honeypots and spam traps, ensuring your email marketing efforts reach their full potential.

Heysender blog

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