Report - WP Mail SMTP 4.4.0

Does WP Mail SMTP work with WordPress 6.8.1 and PHP 8.1.12? A smoke test was performed on 2025-04-30 17:49:52 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: 341.34 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	6.8.1
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2025-03-05T14:42:00+00:00
Active installs	4,000,000+
WordPress.org page	https://wordpress.org/plugins/wp-mail-smtp/
Badges	Get badge code

Pages 8

WP Mail SMTP › Setup Wizard

URL	/wp-admin/admin.php?page=wp-mail-smtp-setup-wizard#/
Requested URL	/wp-admin/plugins.php?action=activate&plugin=wp-mail-smtp%2Fwp_mail_smtp.php&plugin_status=all&paged=1&s&_wpnonce=a7ea6688ee
Aspect	after-activation
HTTP status	200
Load time	0.794 s
Memory usage	N/A
JS errors	None
Resource errors	None

WP Mail SMTP

URL	/wp-admin/admin.php?page=wp-mail-smtp
Aspect	menu-item
HTTP status	200
Load time	0.657 s
Memory usage	3.97 MiB
JS errors	None
Resource errors	None

WP Mail SMTP → Email Log

URL	/wp-admin/admin.php?page=wp-mail-smtp&tab=logs
Requested URL	/wp-admin/admin.php?page=wp-mail-smtp-logs
Aspect	menu-item
HTTP status	200
Load time	0.325 s
Memory usage	3.85 MiB
JS errors	None
Resource errors	None

WP Mail SMTP → Email Reports

URL	/wp-admin/admin.php?page=wp-mail-smtp-reports
Aspect	menu-item
HTTP status	200
Load time	0.249 s
Memory usage	3.85 MiB
JS errors	None
Resource errors	None

WP Mail SMTP → Tools

URL	/wp-admin/admin.php?page=wp-mail-smtp-tools
Aspect	menu-item
HTTP status	200
Load time	0.210 s
Memory usage	4 MiB
JS errors	None
Resource errors	None

WP Mail SMTP → About Us

URL	/wp-admin/admin.php?page=wp-mail-smtp-about
Aspect	menu-item
HTTP status	200
Load time	0.491 s
Memory usage	3.85 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.222 s
Memory usage	3.61 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	0.398 s
Memory usage	3.92 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.356 s	0.321 s	-0.035 s	3.51 MiB	3.92 MiB	+ 417.97 KiB
/wp-admin/edit.php	0.200 s	0.231 s	+0.031 s	3.57 MiB	3.93 MiB	+ 370.18 KiB
/wp-admin/post-new.php	0.769 s	0.646 s	-0.123 s	6.06 MiB	6.47 MiB	+ 412.78 KiB
/wp-admin/upload.php	0.564 s	0.550 s	-0.014 s	3.53 MiB	3.85 MiB	+ 332.24 KiB
/wp-admin/options-writing.php	0.194 s	0.221 s	+0.027 s	3.5 MiB	3.83 MiB	+ 336.77 KiB
/wp-admin/media-new.php	0.258 s	0.237 s	-0.021 s	3.49 MiB	3.83 MiB	+ 344.96 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.224 s	0.190 s	-0.034 s	3.51 MiB	3.85 MiB	+ 350.86 KiB
/wp-admin/post-new.php?post_type=page	0.645 s	0.649 s	+0.004 s	6.05 MiB	6.45 MiB	+ 408.31 KiB
/wp-admin/options-discussion.php	0.339 s	0.261 s	-0.078 s	3.5 MiB	3.83 MiB	+ 333.27 KiB
/wp-admin/edit-comments.php	0.206 s	0.452 s	+0.246 s	3.52 MiB	3.85 MiB	+ 333.49 KiB
/	0.316 s	0.196 s	-0.120 s	3.5 MiB	3.61 MiB	+ 113.88 KiB
Average	0.370 s	0.359 s	-0.011 s	3.98 MiB	4.31 MiB	+ 341.34 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

Language		%	Lines of code	Comment lines	Files
	PHP	96.8%	47,346	33,408	528
	JavaScript	2.2%	1,094	510	7
	CSS	0.5%	235	5	1
	SVG	0.4%	217	0	101
Total			48,892	33,923	637

PHP Code Analysis | More results »

Lines of code	22,467
Total complexity	3,944
Median class complexity	14.5
Median method complexity	2.0
Most complex class	WPMailSMTP\Options
Most complex function	WPMailSMTP\Options::is_const_defined()

Classes	128
Methods	1,128
Functions	6

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 2

wp_wpmailsmtp_debug_events
wp_wpmailsmtp_tasks_meta

Options `wp_options` 10

action_scheduler_lock_async-request-runner
wp_mail_smtp
wp_mail_smtp_activated
wp_mail_smtp_activated_time
wp_mail_smtp_activation_prevent_redirect
wp_mail_smtp_debug_events_db_version
wp_mail_smtp_initial_version
wp_mail_smtp_migration_version
wp_mail_smtp_review_notice
wp_mail_smtp_version

Custom Post Types 1

ID	Name
scheduled-action	Scheduled Actions

Meta Boxes

{
    "dashboard": {
        "wp_mail_smtp_reports_widget_lite": {
            "title": "WP Mail SMTP",
            "context": "normal"
        }
    }
}

PHP Error Log

The log file is empty.

WP Mail SMTP 4.4.0