Hi Christian,
Thank you for the question.

Currently, It is not feasible in MediaPress. It is coming in near future though.

Regards
Brajesh

Hi,
The user with protonmail was able to register as you had both of these plugin active. It seems to me the Ban registration allowed bypassing the Restrict domains.

Once you disable the Ban registration, you can try using any other email domain not in your list(say example.com) to verify if the account is restricted from creation or not.

Regards
Brajesh

Hi,
I am sorry for the inconvenience.

Can you please check if you are using Restrict email domain and not ban email domain plugin?

https://buddydev.com/plugins/wp-ban-registration-domain/

We have 2 similar plugin with different purpose and this might be causing the confusion.

Regards
Brajesh

Hi Nick,
Please use the following code.

/**
 * Remove image button from the BP Nouveau template's compose message.
 */
add_filter( 'mce_buttons', function ( $buttons ) {

	// make sure this is for the message.
	if ( ! has_filter( 'mce_buttons', 'bp_nouveau_messages_mce_buttons' ) ) {
		return $buttons;
	}

	return array_diff( $buttons, array( 'image' ) );

}, 20 );

Regards
Brajesh