Spam Trap Definition - What is Spam Trap?

When a sender repeatedly sends emails to an email address which was previously a valid address but now is presented as hard bounce, ISPs and blacklist providers set up the sender address a spam trap. This means, if he continues to send emails to the invalid adress, the sender perceived as ignoring hard bounces and may be reported as spam.

A spam trap appears as a real email address, but it cannot be held for any kind of communication purposes.

Since these addresses cannot opt-in an email list, if a spam trap address makes it on your subscriber email lists, and you send an email to this address, it is fathomed out that you're not abusing the rules of permission-based email marketing, in other words, you have "hit a spam trap".

spam trap image

Types of Spam Traps

Pure Spam Trap

These are email addresses that have never been used by anyone else but ISPs.

Recycled Email Addresses

Recycled spam traps are too old email addresses which are not used by the actual owner anymore.

Invalid Email Addresses

If somebody subscribes using an email address that contains a typo or is a fake email address, you carry the risk of exposing a spam trap email address.

The damage they cause

The effect of hitting a spam trap may alter depending on;

  • The type of spam trap,

  • How many times you take the bait,

  • Which consequenses the spam trap creates.

If someone makes the mistake of sending emails to a spam trap;

  • Sender reputation will decrease

  • Bounce rate of your sender server will increase

  • Email deliverability will drop,

  • The IP address may be added to a backlist database.

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