### Add Postmark Connection Settings in FluentSMTP

Source: https://fluentsmtp.com/docs/configure-postmark-in-fluent-smtp-to-send-emails

Configure Postmark by providing From Email, From Name, API Key, and selecting Message Stream. Ensure 'Force Sender Name' is checked if return path alignment is needed.

```php
define( ‘FLUENTMAIL_POSTMARK_API_KEY’, ‘********************’ );
```

--------------------------------

### Store Brevo API Key in wp-config.php

Source: https://fluentsmtp.com/docs/setting-up-sendinblue-mailer-in-fluent-smtp?replytocom=1177

Optionally store your Brevo API key directly in your WordPress wp-config.php file for enhanced security. Replace the asterisks with your actual API key.

```php
define( 'FLUENTMAIL_SENDINBLUE_API_KEY', '********************' );
```