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YaySMTP - Simple WP SMTP Mail 2.5.1

Does YaySMTP - Simple WP SMTP Mail work with WordPress 6.3.2 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
1PHP notices
48PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 94.23 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.044 seconds
The average page load time increased by this amount after activating the plugin.

Environment
WordPress version6.3.2
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 10,000+
WordPress.org page https://wordpress.org/plugins/yaysmtp/
Badges

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Pages 6

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=yaysmtp%2Fyay-smtp.php&plugin_status=all&paged=1&s&_wpnonce=c29959a8d2
Aspect after-activation
HTTP status 200
Load time 0.868 s
Memory usage 2.95 MiB
JS errors None
Resource errors None

YayCommerce

Page screenshot: YayCommerce
URL /wp-admin/admin.php?page=yaysmtp
Aspect menu-item
HTTP status 200
Load time 0.462 s
Memory usage 3.26 MiB
JS errors None
Resource errors None

YayCommerce → Licenses

Page screenshot: YayCommerce → Licenses
URL /wp-admin/admin.php?page=yaycommerce-licenses
Aspect menu-item
HTTP status 200
Load time 0.449 s
Memory usage 2.89 MiB
JS errors None
Resource errors None

YayCommerce → Other plugins

Page screenshot: YayCommerce → Other plugins
URL /wp-admin/admin.php?page=yaycommerce-other-plugins
Aspect menu-item
HTTP status 200
Load time 0.330 s
Memory usage 2.84 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 0.271 s
Memory usage 3.2 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 0.528 s
Memory usage 2.93 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.372 s0.468 s+0.096 s2.83 MiB2.93 MiB+ 105.26 KiB
/wp-admin/edit.php0.212 s0.386 s+0.174 s2.85 MiB2.95 MiB+ 101.96 KiB
/wp-admin/post-new.php0.757 s0.811 s+0.054 s5.22 MiB5.33 MiB+ 113.93 KiB
/wp-admin/upload.php0.609 s0.457 s-0.152 s2.77 MiB2.84 MiB+ 68.74 KiB
/wp-admin/options-writing.php0.233 s0.358 s+0.125 s2.76 MiB2.84 MiB+ 82.09 KiB
/wp-admin/media-new.php0.360 s0.342 s-0.018 s2.74 MiB2.84 MiB+ 99.13 KiB
/wp-admin/edit-tags.php?taxonomy=category0.220 s0.314 s+0.094 s2.76 MiB2.86 MiB+ 107.48 KiB
/wp-admin/post-new.php?post_type=page0.594 s0.604 s+0.010 s5.21 MiB5.32 MiB+ 109.52 KiB
/wp-admin/options-discussion.php0.215 s0.390 s+0.175 s2.75 MiB2.84 MiB+ 93.01 KiB
/wp-admin/edit-comments.php0.250 s0.289 s+0.039 s2.78 MiB2.87 MiB+ 87.12 KiB
/0.283 s0.171 s-0.112 s3.13 MiB3.2 MiB+ 68.27 KiB
Average 0.373 s0.417 s+0.044 s3.25 MiB3.35 MiB+ 94.23 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
CSS
Language % Lines of code Comment lines Files
PHP82.4%26,0149,561294
CSS8.2%2,579523
JavaScript7.7%2,4251574
PO File1.8%5532062
SVG0.0%301
Total 31,574 9,976 304

PHP Code Analysis | More results »

Lines of code 8,303
Total complexity 2,186
Median class complexity 39.0
Median method complexity 3.0
Most complex class YaySMTP\Helper\Utils
Most complex function YaySMTP\Controller\SendgridController::__construct()
Classes 37
Methods 342
Functions 2

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 2

Meta Boxes 

{
    "dashboard": {
        "yaysmtp_analytics_email": {
            "title": "YaySMTP Stats",
            "context": "normal"
        }
    }
}

PHP Error Log 49 lines

[13-Oct-2023 23:41:50 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:50 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:51 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:52 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:52 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:52 UTC] PHP Deprecated:  http_build_query(): Passing null to parameter #2 ($numeric_prefix) of type string is deprecated in /wp-content/plugins/yaysmtp/vendor/league/src/Tool/QueryBuilderTrait.php on line 31
[13-Oct-2023 23:41:52 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:53 UTC] PHP Notice:  Function wpdb::prepare was called <strong>incorrectly</strong>. The query argument of wpdb::prepare() must have a placeholder. Please see <a href="https://wordpress.org/documentation/article/debugging-in-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 3.9.0.) in /wp-includes/functions.php on line 5905
[13-Oct-2023 23:41:53 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:54 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:55 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:55 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:56 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:57 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:57 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:57 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:57 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:58 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:41:59 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:00 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:00 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:00 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:00 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:01 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:01 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:01 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:02 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:02 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:02 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:03 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:03 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:03 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:03 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:03 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:04 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:04 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:04 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:04 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:05 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:05 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:06 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:07 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
[13-Oct-2023 23:42:07 UTC] PHP Deprecated:  Return type of League\OAuth2\Client\Token\AccessTokenInterface::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /wp-content/plugins/yaysmtp/vendor/league/src/Token/AccessTokenInterface.php on line 72
See also: All tests for this plugin, How to Hide YaySMTP Admin Menus and Widgets