Total attachment size limit causing emails to not be sent without annotification

Hello @robertcroydon,

Thank you for the explanation.

As I understand it, the emails are being sent on the frontend with Forminator, but then blocked at some point due to the file size limitations. And Forminator can’t determine this kind of failure for some reason.

We have forwarded your questions to the developers, so they’ll try replicating a similar scenario and check if any additional PHP snippet could help in such cases.

We’ll let you know once we hear from the devs.

Best Regards,
Dmytro

Hi @robertcroydon,

Could you please try this snippet and then check whether it helps?

<?php

add_action( 'wp_footer', 'wpmudev_file_size_validator_rules', 9999 );
function wpmudev_file_size_validator_rules() {
	global $post;
	if ( is_a( $post, 'WP_Post' ) && ! has_shortcode( $post->post_content, 'forminator_form' ) ) {
		return;
	}
	?>
	<script type="text/javascript">
	jQuery( document ).ready( function($) {
		setTimeout(function() {
			$('.forminator-custom-form').trigger('after.load.forminator');
		},100);

		$(document).on('after.load.forminator', function(e, form_id) {
			$.validator.addMethod('filesize', function (value, element, param) {
                var file_length = element.files.length; // get length
                var items = element.files;
                var fileSize = 0;
            
                if ( file_length > 0 ) {
                    for ( var i = 0; i < file_length; i++ ) {
                        fileSize = fileSize+items[i].size; // get file size
                    }

                    if ( fileSize > param * 1000000 ) {
                        return false;
                    } else {
                        return true;
                    }
                }
			}, 'Maximum file size allowed {0} MB.');
		});
	});
	</script>
	<?php
}

add_filter( 'forminator_field_file_validation_rules', 'wpmudev_size_rules_file_upload', 10, 3 );
function wpmudev_size_rules_file_upload( $rules, $id, $field ) {
    if ( $field['file-type'] == 'multiple' ) {
        $id .= '[]';
        if ( ! empty( $rules ) ) {
			$start_rule = '"' . $id . '": {' . "\n";
			$end_rule 	= '"' . $id . '": {' . "\n" . '"filesize": "' . $field['upload-limit'] . '",';
			$rules 		= str_replace( $start_rule, $end_rule , $rules );
		}
    }
	return $rules;
}

You can implement the above code as a mu-plugins. Please check this link on how to implement the above code as a mu-plugins:
https://wpmudev.com/docs/using-wordpress/installing-wordpress-plugins/#installing-mu-plugins

Best Regards,

Nithin

Hi @robertcroydon,

Since we haven’t heard from you for a while. I’ll mark this thread as resolved for now. Please feel free to re-open the thread if you need further assistance.

Regards
Nithin