Report - Email SMTP Plugin by Mail Booster 4.0.4

Does "Email SMTP Plugin by Mail Booster" work with WordPress 6.8.3 and PHP 8.1.12? A smoke test was performed on 2025-10-04 08:09:22 UTC.

Summary

Errors

	No PHP errors, warnings or notices
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors
	Looks good! No problems were detected.

Performance

Memory usage: 69.02 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment

WordPress version	6.8.3
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2019-11-18T10:28:00+00:00
Active installs	600+
WordPress.org page	https://wordpress.org/plugins/wp-mail-booster/
Badges	Get badge code

Pages 4

Wizard Setup ‹ Test site — WordPress

URL	/wp-admin/admin.php?page=mail_booster_email_configuration
Requested URL	/wp-admin/plugins.php?action=activate&plugin=wp-mail-booster%2Fwp-mail-booster.php&plugin_status=all&paged=1&s&_wpnonce=bf516bea5a
Aspect	after-activation
HTTP status	200
Load time	0.440 s
Memory usage	3.65 MiB
JS errors	None
Resource errors	None

WP Mail Booster

URL	/wp-admin/admin.php?page=wp_mail_booster_wizard
Aspect	menu-item
HTTP status	200
Load time	0.268 s
Memory usage	3.56 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.192 s
Memory usage	3.48 MiB
JS errors	None
Resource errors	None

Dashboard ‹ Test site — WordPress

URL	/wp-admin/index.php
Aspect	new-meta-boxes
HTTP status	200
Load time	0.245 s
Memory usage	3.58 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.310 s	0.277 s	-0.033 s	3.51 MiB	3.58 MiB	+ 72.9 KiB
/wp-admin/edit.php	0.177 s	0.185 s	+0.008 s	3.57 MiB	3.64 MiB	+ 74.88 KiB
/wp-admin/post-new.php	0.722 s	0.596 s	-0.126 s	6.06 MiB	6.15 MiB	+ 92.7 KiB
/wp-admin/upload.php	0.537 s	0.514 s	-0.023 s	3.52 MiB	3.58 MiB	+ 57.16 KiB
/wp-admin/options-writing.php	0.188 s	0.165 s	-0.023 s	3.5 MiB	3.56 MiB	+ 61.16 KiB
/wp-admin/media-new.php	0.249 s	0.248 s	-0.001 s	3.49 MiB	3.56 MiB	+ 69.35 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.157 s	0.291 s	+0.134 s	3.5 MiB	3.58 MiB	+ 80.34 KiB
/wp-admin/post-new.php?post_type=page	0.588 s	0.556 s	-0.032 s	6.05 MiB	6.14 MiB	+ 88.22 KiB
/wp-admin/options-discussion.php	0.275 s	0.386 s	+0.111 s	3.5 MiB	3.56 MiB	+ 57.66 KiB
/wp-admin/edit-comments.php	0.185 s	0.181 s	-0.004 s	3.52 MiB	3.58 MiB	+ 57.16 KiB
/	0.266 s	0.179 s	-0.087 s	3.43 MiB	3.48 MiB	+ 47.74 KiB
Average	0.332 s	0.325 s	-0.007 s	3.97 MiB	4.04 MiB	+ 69.02 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

PHP

PO File

JavaScript

CSS

Language		%	Lines of code	Comment lines	Files
	PHP	36.9%	13,554	5,427	57
	PO File	24.3%	8,948	6,379	16
	JavaScript	20.3%	7,466	7,161	8
	CSS	18.3%	6,727	90	12
	SVG	0.2%	73	0	2
Total			36,768	19,057	95

PHP Code Analysis | More results »

Lines of code	9,067
Total complexity	1,680
Median class complexity	12.0
Median method complexity	2.0
Most complex class	PHPMailer
Most complex function	wp_mail()

Classes	37
Methods	382
Functions	69

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Database Tables 3

wp_mail_booster
wp_mail_booster_logs
wp_mail_booster_meta

Options `wp_options` 3

mail_booster_admin_notice
mail_booster_update_database
mail-booster-version-number

Meta Boxes

{
    "dashboard": {
        "mail_booster_dashboard_widget": {
            "title": "Mail Booster Statistics",
            "context": "normal"
        }
    }
}

PHP Error Log

The log file is empty.

Email SMTP Plugin by Mail Booster 4.0.4