Post SMTP 3.6.1

Does Post SMTP work with WordPress 6.8.3 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
1PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 605.82 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.175 seconds
The average page load time increased by this amount after activating the plugin.

Environment
WordPress version6.8.3
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 400,000+
WordPress.org page https://wordpress.org/plugins/post-smtp/
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Pages 7

Post SMTP Setup ‹ Test site — WordPress

Page screenshot: Post SMTP Setup ‹ Test site — WordPress
URL /wp-admin/admin.php?page=postman
Requested URL /wp-admin/plugins.php?action=activate&plugin=post-smtp%2Fpostman-smtp.php&plugin_status=all&paged=1&s&_wpnonce=51bf7e5daa
Aspect after-activation
HTTP status 200
Load time 1.126 s
Memory usage 4.23 MiB
JS errors None
Resource errors None

Post SMTP

Page screenshot: Post SMTP
URL /wp-admin/admin.php?page=postman
Aspect menu-item
HTTP status 200
Load time 1.051 s
Memory usage 4.08 MiB
JS errors None
Resource errors None

Post SMTP → Email Log

Page screenshot: Post SMTP → Email Log
URL /wp-admin/admin.php?page=postman_email_log
Aspect menu-item
HTTP status 200
Load time 0.429 s
Memory usage 4.08 MiB
JS errors None
Resource errors None

Post SMTP → Mobile AppNew

Page screenshot: Post SMTP → Mobile AppNew
URL /wp-admin/admin.php?page=postman%2Fconfiguration
Requested URL /wp-admin/admin.php?page=postman/configuration
Aspect menu-item
HTTP status 200
Load time 0.765 s
Memory usage 4.17 MiB
JS errors None
Resource errors None

Post SMTP → Extensions

Page screenshot: Post SMTP →  Extensions
URL /wp-admin/admin.php?page=extensions
Aspect menu-item
HTTP status 200
Load time 0.396 s
Memory usage 4.08 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 0.337 s
Memory usage 3.65 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 0.494 s
Memory usage 4.15 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.391 s0.713 s+0.322 s3.51 MiB4.15 MiB+ 661.07 KiB
/wp-admin/edit.php0.221 s0.352 s+0.131 s3.57 MiB4.23 MiB+ 671.96 KiB
/wp-admin/post-new.php0.942 s1.917 s+0.975 s6.06 MiB6.82 MiB+ 781.54 KiB
/wp-admin/upload.php0.711 s0.768 s+0.057 s3.52 MiB4.09 MiB+ 580.71 KiB
/wp-admin/options-writing.php0.245 s0.248 s+0.003 s3.5 MiB4.08 MiB+ 588.7 KiB
/wp-admin/media-new.php0.310 s0.318 s+0.008 s3.49 MiB4.08 MiB+ 598.02 KiB
/wp-admin/edit-tags.php?taxonomy=category0.213 s0.257 s+0.044 s3.5 MiB4.1 MiB+ 605.16 KiB
/wp-admin/post-new.php?post_type=page0.863 s0.895 s+0.032 s6.05 MiB6.81 MiB+ 777.57 KiB
/wp-admin/options-discussion.php0.306 s0.649 s+0.343 s3.5 MiB4.07 MiB+ 583.28 KiB
/wp-admin/edit-comments.php0.243 s0.307 s+0.064 s3.52 MiB4.1 MiB+ 590.84 KiB
/0.344 s0.291 s-0.053 s3.43 MiB3.65 MiB+ 225.2 KiB
Average 0.435 s0.610 s+0.175 s3.97 MiB4.56 MiB+ 605.82 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
PHP90.1%141,39677,2831,171
CSS3.2%5,0875924
PO File2.8%4,4676,5867
JavaScript2.6%4,0271,43642
SVG1.1%1,688450
Markdown0.1%21801
JSON0.0%4001
HTML0.0%3701
Bourne Shell0.0%201
DOS Batch0.0%201
INI0.0%111
Total 156,965 85,369 1,300

PHP Code Analysis | More results »

Lines of code 79,882
Total complexity 17,342
Median class complexity 14.0
Median method complexity 2.0
Most complex class Freemius
Most complex function HTML5TreeConstructer::inBody()
Classes 540
Methods 4,611
Functions 138

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 7

Custom Post Types 1

ID Name
postman_sent_mailSent Emails

Meta Boxes

{
    "dashboard": {
        "example_dashboard_widget": {
            "title": "Postman SMTP",
            "context": "normal"
        },
        "post_smtp_reports_widget_lite": {
            "title": "Postman SMTP Stats",
            "context": "normal"
        }
    }
}

Capabilities 2

PHP Error Log 1 lines

[30-Oct-2025 10:07:31 UTC] PHP Deprecated:  Optional parameter $transport declared before required parameter $statusMessage is implicitly treated as a required parameter in /wp-content/plugins/post-smtp/Postman/Postman-Email-Log/PostmanEmailLogService.php on line 89
See also: All tests for this plugin, How to Hide Post SMTP Admin Menus and Widgets