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Last updated
May 9, 2024

Anti-Spam Honeypot: What is and How it Works

Brian Wu

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What Is a Honeypot Email Trap?

Honeypot email traps are essentially decoy email addresses, strategically placed by organizations, ISPs, or anti-spam entities to lure and identify spammers and malicious actors. Unlike regular email addresses, honeypots are not used for communication but are monitored to catch unsolicited emails, helping to protect users from spam and phishing attempts.

The Difference Between Honeypots and Spam Traps

While both honeypots and spam traps are tools used to fight spam, there are key differences between the two. Honeypots are specifically designed to attract email harvesters and spammers, acting as bait. They are hidden in places where humans are unlikely to find them but where automated scripts or bots might scrape them up. Once an email is sent to a honeypot, the sender is immediately flagged as a potential spammer.

Spam traps, on the other hand, can be a bit broader in their approach. They might include email addresses that were once valid but have been abandoned and recycled for the purpose of catching spam. These traps help identify senders who are not practicing good list hygiene or who are using outdated or purchased email lists.

How Honeypot Email Addresses are Used

Honeypot email addresses are a powerful tool in the arsenal against spam and email abuse. Here's how they are typically used:

  • Detection: By monitoring the emails sent to honeypot addresses, organizations can detect and block spammers and malicious actors before they reach real users.
  • Prevention: The mere presence of honeypot addresses can act as a deterrent, discouraging spammers from targeting a network or domain.
  • Analysis: Analyzing the traffic to honeypot addresses provides insights into spamming techniques and trends, helping improve spam filters and security measures.
  • Enforcement: Information gathered from honeypots can be used to enforce anti-spam laws and regulations, holding malicious actors accountable for their actions.

Source: IDStrong.com

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How to Identify and Avoid Honeypot Traps

Ensuring the integrity and effectiveness of your email marketing strategies necessitates a proactive approach to identifying and avoiding honeypot traps. These measures not only help in data protection and sender reputation but also align with the expectations of email service providers and the requirements of spam laws and GDPR compliance.

Email Validation

Email validation is a process that checks the validity of an email address to determine if it is correct and deliverable. This verification process is instrumental in avoiding honeypot traps, as it helps filter out invalid, inactive, or suspicious email addresses that could potentially be honeypots. By ensuring that each email on your list is valid, you significantly reduce the risk of sending messages to honeypot addresses, thereby protecting your sender reputation.

Real-time verification, facilitated by API integration, enhances this process by validating email addresses as they are entered into your system. This immediate validation prevents the accumulation of invalid emails right from the start, further safeguarding your campaigns from the risks associated with honeypots.

Did you know? 2.76% was the average email bounce rate for all industries.

Case Studies

From NeilPatel.com:

By resending emails, MailiGen was able to increase the open rate from 20% to 29%.

From InboxAlly.com:

Dr. Linnea Passaler, who has built a substantial opt-in subscriber list for her mental health services, faced a significant drop in email open rates from around 30% to less than 10% following a campaign in March and April 2022. Despite efforts to resolve the issue, challenges with email deliverability persisted, prompting her to seek expertise from Fabricio Y. Fujikawa, an email deliverability expert. 

After conducting an inbox placement test with GlockApps, they discovered that only 49.2% of emails reached the primary inbox, with a notable percentage landing in spam (26.2%) and promotions (23.1%), and 1.5% not delivered at all. With Fabricio's intervention and the implementation of a periodic monitoring routine, the inbox placement rate significantly improved, rising to over 91%, indicating a successful resolution to the email deliverability problems Dr. Linnea was facing.

Brian Wu
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