Site Mailer - SMTP Replacement, Email API Deliverability & Email Log 1.2.7

Does "Site Mailer - SMTP Replacement, Email API Deliverability & Email Log" work with WordPress 6.8.1 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
3Unrecognized messages in the PHP error log
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 135.46 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 version6.8.1
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 100,000+
WordPress.org page https://wordpress.org/plugins/site-mailer/
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Pages 3

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=site-mailer%2Fsite-mailer.php&plugin_status=all&paged=1&s&_wpnonce=ac26c29695
Aspect after-activation
HTTP status 200
Load time 0.569 s
Memory usage 3.84 MiB
JS errors None
Resource errors None

Settings → Site Mailer

Page screenshot: Settings → Site Mailer
URL /wp-admin/options-general.php?page=site-mailer-settings
Aspect menu-item
HTTP status 200
Load time 0.806 s
Memory usage 3.61 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 0.207 s
Memory usage 3.51 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.359 s0.331 s-0.028 s3.51 MiB3.6 MiB+ 99.96 KiB
/wp-admin/edit.php0.204 s0.219 s+0.015 s3.57 MiB3.67 MiB+ 97.77 KiB
/wp-admin/post-new.php0.844 s0.952 s+0.108 s6.06 MiB6.41 MiB+ 353.59 KiB
/wp-admin/upload.php0.778 s0.577 s-0.201 s3.52 MiB3.6 MiB+ 80 KiB
/wp-admin/options-writing.php0.233 s0.187 s-0.046 s3.5 MiB3.58 MiB+ 85.96 KiB
/wp-admin/media-new.php0.268 s0.259 s-0.009 s3.49 MiB3.58 MiB+ 92.19 KiB
/wp-admin/edit-tags.php?taxonomy=category0.189 s0.190 s+0.001 s3.5 MiB3.6 MiB+ 102.86 KiB
/wp-admin/post-new.php?post_type=page0.601 s0.605 s+0.004 s6.05 MiB6.39 MiB+ 349.13 KiB
/wp-admin/options-discussion.php0.441 s0.339 s-0.102 s3.5 MiB3.58 MiB+ 82.46 KiB
/wp-admin/edit-comments.php0.265 s0.450 s+0.185 s3.52 MiB3.6 MiB+ 79.99 KiB
/0.305 s0.194 s-0.111 s3.44 MiB3.5 MiB+ 66.17 KiB
Average 0.408 s0.391 s-0.017 s3.97 MiB4.1 MiB+ 135.46 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
JavaScript
Language % Lines of code Comment lines Files
PHP79.8%5,6072,23893
JavaScript16.7%1,1749425
Markdown2.2%15301
CSS1.3%9104
Total 7,025 2,332 123

PHP Code Analysis | More results »

Lines of code 5,551
Total complexity 914
Median class complexity 6.0
Median method complexity 1.0
Most complex class SiteMailer\Classes\Database\Table
Most complex function SiteMailer\Classes\Services\Client::request()
Classes 90
Methods 464
Functions 0

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

Options wp_options 6

PHP Error Log 3 lines

[17-Jun-2025 11:16:42 UTC] [Site Mailer]: error in SiteMailer\Modules\Settings\Module::refresh_plan_data(): Invalid connect data
[17-Jun-2025 11:16:42 UTC] [Site Mailer]: error in SiteMailer\Modules\Settings\Module::refresh_plan_data(): Invalid connect data
[17-Jun-2025 11:16:42 UTC] [Site Mailer]: error in SiteMailer\Modules\Settings\Module::refresh_plan_data(): Invalid connect data
See also: All tests for this plugin, How to Hide the "Site Mailer" Admin Menu