Postie is direct mail for digital marketers. Manage and easily deploy your direct mail campaigns, build knowledge, and collect better results.


In order to enable our integration with Postie, you’ll need your API Key, available on the API Setup page in Postie under Integrations.

Data Processing Notes

Postie will not accept data more than 24 hours old.

Supported Identities

mParticle forwards email addresses to Postie.

Supported Events

mParticle will forward the following event types to Postie:

  • Custom Event
  • User Attribute Change
  • User Identity Change

Configuration Settings

Setting Name Data Type Default Value Description
API Key string This is your API Key, which can be found in Postie on the API Setup page under Integrations.

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