wpsnoop: fix Free WP Mail SMTP plugin conflicts, errors & issues

When the plugin Free WP Mail SMTP conflicts or throws a PHP error we hope wpsnoop can help you to fix the issue quickly.

Discover which shortcodes wp-options PHP functions database tables and files are created by Free WP Mail SMTP, plus learn which plugins and/or themes could be in conflict with Free WP Mail SMTP.

Troubleshooting theme and plugin conflicts is easier when you know what Free WP Mail SMTP leaves behind after uninstalling it from a WordPress installation, there is a list down below for your convenience.

Expert advice is recommended if you are not technically proficient with PHP, MySQL etc. View support options for Free WP Mail SMTP

Database Issues

ShortCode Issues

Function Issues

File System Issues

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What does Free WP Mail SMTP version 1.0 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for Free WP Mail SMTP to perform differently in your installation, previous versions before 1.0 may have created a different set of shortcodes, used different function names or could have created entirely different database tables to store settings and operate. This is not an exhaustive list but shows how version 1.0 of Free WP Mail SMTP behaves when installed and removed on a clean installation of WordPress.

We have not tested individual shortcodes, features or settings of this plugin but instead have concentrated on the potential for obvious errors and conflicts which can occur, if you need help with the plugin in your local installation you can get WordPress help and support for Free WP Mail SMTP by clicking here.

Our testing covered the free version of this plugin there may or may not be a paid version or premium version available for purchase that unlocks additional features and could behave in a slightly or very different manner.

Summary of WordPress plugin analysis: Free WP Mail SMTP

Plugin Slug: free-wp-mail-smtp Internal ID: 29122 Addon Type: Plugin Version: 1.0 Price: Free Source: WordPress.org Files: 14 (113.95kB) Short Codes: [ / ] 0 Database Tables: 0 Function Count: 9 Code Review: Search Provit

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Which new files does Free WP Mail SMTP add to WordPress?

This section will populate with a table showing an icon, size and filepath.

The plugin Free WP Mail SMTP added 14 new files when it was installed with WP-CLI in our WordPress test environment.

Type & Path	Size	Conflicts
wp-content/plugins/free-wp-mail-smtp/	113.95kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/class-wp-list-table-custom.php	35.83kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/css/	36.14kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/css/free-wp-mail-smtp-style.css	433.00B	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/css/free-wp-mail-smtp-ui.css	35.71kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/error.log		No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/free-wp-mail-smtp.php	21.91kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/images/	2.08kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/images/logo.png	2.08kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/js/		No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/langs/	13.67kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/langs/wp_mail_smtp-he_IL.mo	9.32kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/langs/wp_mail_smtp-ja.mo	4.35kB	No known conflicts with other themes or plugins.
wp-content/plugins/free-wp-mail-smtp/readme.txt	4.33kB	No known conflicts with other themes or plugins.

Which new shortcodes does Free WP Mail SMTP add to WordPress?

The plugin Free WP Mail SMTP did not add any shortcodes when it was installed with WP-CLI in our WordPress test environment.

Which new database tables are created by the WordPress plugin Free WP Mail SMTP?

Free WP Mail SMTP did not create any new database tables when it was installed. It is possible that the plugin creates new database tables after an initial setup or configuration or after some period of use.

Which new options are added to the wp-options table by Free WP Mail SMTP?

When Free WP Mail SMTP was activated and loaded for the first time it created 11 new options in the wp_options table. Any known conflicts will be shown in red.

Option Name		Known Conflicts
wpp_api_key		Potential conflict with 1 plugin or theme
(empty string)
wpp_mail_from		Potential conflict with 1 plugin or theme
(empty string)
wpp_mail_from_name		Potential conflict with 1 plugin or theme
(empty string)
wpp_mailer		Potential conflict with 1 plugin or theme
smtp
wpp_mail_set_return_path		The wpp_mail_set_return_path option doesn't have any known conflicts with other themes or plugins.
false
wpp_smtp_auth		The wpp_smtp_auth option doesn't have any known conflicts with other themes or plugins.
(empty string)
wpp_smtp_host		The wpp_smtp_host option doesn't have any known conflicts with other themes or plugins.
smtp.swipemail.in
wpp_smtp_pass		The wpp_smtp_pass option doesn't have any known conflicts with other themes or plugins.
(empty string)
wpp_smtp_port		The wpp_smtp_port option doesn't have any known conflicts with other themes or plugins.
2525
wpp_smtp_ssl		The wpp_smtp_ssl option doesn't have any known conflicts with other themes or plugins.
none
wpp_smtp_user		The wpp_smtp_user option doesn't have any known conflicts with other themes or plugins.
(empty string)

During use Free WP Mail SMTP may or may not create more options depending on how the plugin is configured and depending on which other themes and plugins are active in your specific hosting environment.

After disabling and deleting Free WP Mail SMTP there were 12 options still present in the wp-options table:

recently_activated
wpp_api_key
wpp_mail_from
wpp_mail_from_name
wpp_mail_set_return_path
wpp_mailer
wpp_smtp_auth
wpp_smtp_host
wpp_smtp_pass
wpp_smtp_port
wpp_smtp_ssl
wpp_smtp_user

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What new PHP functions does Free WP Mail SMTP declare when it is active?

Installing Free WP Mail SMTP added 9 new functions to Wordpress at run-time. These functions are internal and generally aren't meant to be used except by developpers who wish to interface with the plugin to enhance or alter its behavior.

Function	Conflicts	Common Errors
phpmailer_init_smtp	11 conflicts	Fatal error: Cannot redeclare phpmailer_init_smtp()
fwms_mail250_activate	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_activate()
fwms_mail250_mail_from	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_mail_from()
fwms_mail250_mail_from_name	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_mail_from_name()
fwms_mail250_mail_plugin_action_links	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_mail_plugin_action_links()
fwms_mail250_menus	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_menus()
fwms_mail250_options_page	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_options_page()
fwms_mail250_scripts_method	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_scripts_method()
fwms_mail250_whitelist_options	0 conflicts	Fatal error: Cannot redeclare fwms_mail250_whitelist_options()

Using Free WP Mail SMTP from the command line with WP-CLI

The following commands are provided for convenience and should only be used if you understand how WP-CLI works. These commands refer to a single WordPress instance and may need to be modified if you are working with a Multisite installation.

How to install Free WP Mail SMTP from the command line with WP-CLI

Navigate to the root of your WordPress installation and type the following command:

wp plugin install free-wp-mail-smtp

How to activate Free WP Mail SMTP from the command line with WP-CLI

To immediately activate Free WP Mail SMTP after WP-CLI downloads the latest version you can use the following command:

wp plugin install free-wp-mail-smtp --activate

How to reinstall Free WP Mail SMTP from the command line with WP-CLI

To force a reinstallation of Free WP Mail SMTP which overwrites the current plugin without asking for confirmation you can use the following command:

wp plugin install free-wp-mail-smtp --force

How to update Free WP Mail SMTP to the latest version from the command line with WP-CLI

wp plugin update free-wp-mail-smtp

How to delete Free WP Mail SMTP from the command line with WP-CLI

wp plugin delete free-wp-mail-smtp

Where can you download earlier versions of Free WP Mail SMTP?

Whenever possible you should use the latest version of plugins and themes, however if you have recently updated and discovered that you need to install an earlier version you may be able to download other versions of Free WP Mail SMTP from the WordPress repository by visiting this link.

Please note that installing earlier versions of a theme or plugin is not generally a recommended course of action for most users and could re-introduce security, stability or other issues in Free WP Mail SMTP

About our testing enviroment

Tests were conducted using Apache 2.4.29, PHP 7.2 on Ubuntu 18.04, MySQL 5.7.33 and WordPress 5.9

It is very possible that different versions of PHP such as PHP 8.0, PHP 7.4, or PHP 7.3 could behave differently with Free WP Mail SMTP. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.