# Postmark

### Configuration

In the [AcyMailing](https://www.acymailing.com/#download) configuration, tab Mail settings, you can choose this sending method.

![](/files/-MS8gs1pwKj6vZKg32gb)

### API Key

In order to send with Postmark, you will need to have an Postmark account.

Log on your account and access the server configuration. If you don't have one, you should create one. Then edit the server and access the API Tokens part to generate one if needed and get it.

Use this token in the AcyMailing configuration and you can then test it thanks to the "Test credentials" button.

![](/files/-MQXpQBWp2tOA12Zl8eT)

### Sender information

You can also access the Sender signature part in Postmark to configure it (allowed sender address, domain, DKIM...).

You should then use this sender in the AcyMailing configuration.

![](/files/-MQXpbG0Nrrjd-H0alcj)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.acymailing.com/external-sending-method/postmark.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.