WP Mail SMTP 3.9.0

Does WP Mail SMTP work with WordPress 6.4 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
2PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 325.49 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 version6.4
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 4,000,000+
WordPress.org page https://wordpress.org/plugins/wp-mail-smtp/
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Pages 8

WP Mail SMTP › Setup Wizard

Page screenshot: 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=9ddf97a571
Aspect after-activation
HTTP status 200
Load time 0.767 s
Memory usage N/A
JS errors None
Resource errors None

WP Mail SMTP

Page screenshot: WP Mail SMTP
URL /wp-admin/admin.php?page=wp-mail-smtp
Aspect menu-item
HTTP status 200
Load time 0.647 s
Memory usage 3.83 MiB
JS errors None
Resource errors None

WP Mail SMTP → Email Log

Page screenshot: 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 0.330 s
Memory usage 3.62 MiB
JS errors None
Resource errors None

WP Mail SMTP → Email Reports

Page screenshot: WP Mail SMTP → Email Reports
URL /wp-admin/admin.php?page=wp-mail-smtp-reports
Aspect menu-item
HTTP status 200
Load time 0.314 s
Memory usage 3.62 MiB
JS errors None
Resource errors None

WP Mail SMTP → Tools

Page screenshot: WP Mail SMTP → Tools
URL /wp-admin/admin.php?page=wp-mail-smtp-tools
Aspect menu-item
HTTP status 200
Load time 0.253 s
Memory usage 3.83 MiB
JS errors None
Resource errors None

WP Mail SMTP → About Us

Page screenshot: WP Mail SMTP → About Us
URL /wp-admin/admin.php?page=wp-mail-smtp-about
Aspect menu-item
HTTP status 200
Load time 0.512 s
Memory usage 3.62 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.221 s
Memory usage 3.46 MiB
JS errors None
Resource errors None

Dashboard ‹ Test site — WordPress

Page screenshot: Dashboard ‹ Test site — WordPress
URL /wp-admin/index.php
Aspect new-meta-boxes
HTTP status 200
Load time 0.443 s
Memory usage 3.71 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.388 s0.451 s+0.063 s3.37 MiB3.71 MiB+ 344.13 KiB
/wp-admin/edit.php0.230 s0.249 s+0.019 s3.4 MiB3.77 MiB+ 379.7 KiB
/wp-admin/post-new.php0.918 s0.768 s-0.150 s5.45 MiB5.79 MiB+ 342.82 KiB
/wp-admin/upload.php0.640 s0.589 s-0.051 s3.32 MiB3.65 MiB+ 338.92 KiB
/wp-admin/options-writing.php0.233 s0.256 s+0.023 s3.31 MiB3.62 MiB+ 313.5 KiB
/wp-admin/media-new.php0.360 s0.353 s-0.007 s3.29 MiB3.61 MiB+ 332.37 KiB
/wp-admin/edit-tags.php?taxonomy=category0.213 s0.219 s+0.006 s3.31 MiB3.66 MiB+ 358.27 KiB
/wp-admin/post-new.php?post_type=page0.624 s0.604 s-0.020 s5.44 MiB5.77 MiB+ 338.41 KiB
/wp-admin/options-discussion.php0.352 s0.489 s+0.137 s3.3 MiB3.61 MiB+ 321.41 KiB
/wp-admin/edit-comments.php0.274 s0.248 s-0.026 s3.33 MiB3.66 MiB+ 340.18 KiB
/0.322 s0.219 s-0.103 s3.3 MiB3.46 MiB+ 170.73 KiB
Average 0.414 s0.404 s-0.010 s3.71 MiB4.03 MiB+ 325.49 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
PHP96.7%41,96530,363481
JavaScript2.3%1,0074716
CSS0.5%23551
SVG0.5%196092
Total 43,403 30,839 580

PHP Code Analysis | More results »

Lines of code 19,273
Total complexity 3,415
Median class complexity 16.0
Median method complexity 2.0
Most complex class WPMailSMTP\Options
Most complex function WPMailSMTP\Options::is_const_defined()
Classes 107
Methods 940
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

Options wp_options 10

Custom Post Types 1

ID Name
scheduled-actionScheduled Actions

Meta Boxes

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

PHP Error Log 2 lines

[07-Nov-2023 20:30:25 UTC] PHP Deprecated:  Function print_emoji_styles is deprecated since version 6.4.0! Use wp_enqueue_emoji_styles instead. in /wp-includes/functions.php on line 6031
[07-Nov-2023 20:30:25 UTC] PHP Deprecated:  Function wp_admin_bar_header is deprecated since version 6.4.0! Use wp_enqueue_admin_bar_header_styles instead. in /wp-includes/functions.php on line 6031
See also: All tests for this plugin, How to Hide WP Mail SMTP Admin Menus and Widgets