Set up a connection to Postmark

API Guide Link: https://postmarkapp.com/developer

Link to authentication page: https://postmarkapp.com/developer/api/signatures-api

1. Name: Required: Name the connection.
2. Connection type: Required: The form will automatically select Postmark.
3. Server Token: Required: Enter the server token. Use the following steps to get the server token:
   1. Log in to your Postmark account.
   2. Click Profile.
   3. Click Users🡪API Tokens.
   4. Server API tokens is the required server token.
4. Account Token: Required: Enter the account token. Use the following steps to get an account token:
   1. Log in to your Postmark account.
   2. Click Profile.
   3. Click Users🡪API Tokens.
   4. The Account API token is the required account token.
5. Borrow concurrency from (optional): Select another connection from the list....

6. Concurrency level (optional): Up to 25 allowed....