How to configure mailpit in local dev environment if normal sendmail will fail.

settings.local.php

// mailsender command for the "Symfony Mailer" module for drupal 10
$settings['mailer_sendmail_commands'] = [
  '/usr/local/bin/mailpit sendmail -t --smtp-addr=mail:1025',
];

Prerequisite:

You have the Drupal Symfony Mailer module enabled and have a local Config Split running.

Issue:

You had problems to receive mails in mailhog in a local setup with sendmail configuration.

Solution:

Add this custom command to the sendmail configuration in your settings.local.php.

After adding go to `/admin/config/system/mailer/transport` and create a transport type 'sendmail'. Chose our newly added command and save the configuration.

Sendmail Transport Command Configuration

Add the `symfony_mailer.mailer_transport.sendmail` config to your partial split configuration for your local split and then export the configuration.

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