WP Mail SMTP 2.4.0

Does WP Mail SMTP work with WordPress 5.5.1 and PHP 7.4.8? A smoke test was performed on .

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: 381.57 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 version5.5.1
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 3,000,000+
WordPress.org page https://wordpress.org/plugins/wp-mail-smtp/
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Pages 5

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=wp-mail-smtp%2Fwp_mail_smtp.php&plugin_status=all&paged=1&s&_wpnonce=ce2bb60d26
Aspect after-activation
HTTP status 200
Load time 2.118 s
Memory usage 3.65 MiB
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 0.453 s
Memory usage 3.24 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 0.237 s
Memory usage 3.01 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 0.285 s
Memory usage 3.25 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 0.314 s
Memory usage 2.85 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.505 s0.339 s-0.166 s2.75 MiB3.14 MiB+ 390.91 KiB
/wp-admin/edit.php0.237 s0.362 s+0.125 s2.8 MiB3.18 MiB+ 389.8 KiB
/wp-admin/post-new.php1.664 s2.068 s+0.404 s4.54 MiB4.94 MiB+ 407.95 KiB
/wp-admin/upload.php0.775 s0.485 s-0.290 s2.63 MiB3.01 MiB+ 390.44 KiB
/wp-admin/options-writing.php0.178 s0.175 s-0.003 s2.64 MiB2.99 MiB+ 358.41 KiB
/wp-admin/media-new.php0.223 s0.200 s-0.023 s2.6 MiB2.99 MiB+ 390.61 KiB
/wp-admin/edit-tags.php?taxonomy=category0.200 s0.200 s+0.000 s2.64 MiB3.03 MiB+ 391.52 KiB
/wp-admin/post-new.php?post_type=page1.528 s1.617 s+0.089 s4.53 MiB4.92 MiB+ 399.53 KiB
/wp-admin/options-discussion.php0.396 s0.251 s-0.145 s2.61 MiB2.99 MiB+ 390.92 KiB
/wp-admin/edit-comments.php0.235 s0.214 s-0.021 s2.65 MiB3.03 MiB+ 389.84 KiB
/0.373 s0.304 s-0.069 s2.56 MiB2.85 MiB+ 297.39 KiB
Average 0.574 s0.565 s-0.009 s3 MiB3.37 MiB+ 381.57 KiB

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 5

Options wp_options 11

Custom Post Types 1

ID Name
scheduled-actionScheduled Actions

PHP Error Log

The log file is empty.

See also: All tests for this plugin, How to Hide WP Mail SMTP Admin Menus and Widgets