Automatically set Postman options to staging settings (mailhog running on same server) after cloning a wordpress site to staging. Adapt to your needs!

set_postman_options_to_staging.php

add_action( 'wp_loaded', 'set_postman_staging_settings');

function set_postman_staging_settings() {

	$staging_options = [
	  "enc_type" => "none",
	  "hostname" => "localhost",
	  "port" => 1025,
	  "sender_email" => "info@yourdomain.de",
	  "envelope_sender" => "info@yourdomain.de",
	  "transport_type" => "smtp",
	  "smtp_mailers" => "postsmtp",
	  "auth_type" => "none",
	  "sender_name" => "YourSite",
	  "oauth_client_id" => "",
	  "oauth_client_secret" => "",
	  "basic_auth_username" => "",
	  "basic_auth_password" => "",
	  "mandrill_api_key" => "",
	  "sendgrid_api_key" => "",
	  "mailgun_api_key" => "",
	  "mailgun_domain_name" => "",
	  "reply_to" => "",
	  "forced_to" => "",
	  "forced_cc" => "",
	  "forced_bcc" => "",
	  "headers" => "",
	  "read_timeout" => 60,
	  "connection_timeout" => 10,
	  "log_level" => 40000,
	  "mail_log_enabled" => "true",
	  "mail_log_max_entries" => 250,
	  "run_mode" => "production",
	  "transcript_size" => 128,
	  "tmp_dir" => "/tmp",
	  "fallback_smtp_enabled" => "no",
	  "fallback_smtp_hostname" => "",
	  "fallback_smtp_port" => 0,
	  "fallback_smtp_security" => "none",
	  "fallback_from_email" => "",
	  "fallback_smtp_username" => "",
	  "fallback_smtp_password" => "",
	  "notification_service" => "default",
	  "pushover_user" => "",
	  "pushover_token" => "",
	  "slack_token" => "",
	  "notification_chrome_uid" => "",
	];

	$current_options = get_option('postman_options');
	if (strpos(site_url(), 'staging') !== false ) {
		if ($current_options['hostname'] !== 'localhost') {
			error_log ("Setting postman options to staging values.");
			update_option('postman_options', $staging_options);
		}
	}
}