wpsnoop: fix MailerMailer plugin conflicts, errors & issues

When the plugin MailerMailer 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 MailerMailer, plus learn which plugins and/or themes could be in conflict with MailerMailer.

Troubleshooting theme and plugin conflicts is easier when you know what MailerMailer 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 MailerMailer

Database Issues

ShortCode Issues

Function Issues

239

File System Issues

Get professional support for MailerMailer here

When you need professional help with WordPress: get help here

What does MailerMailer version 1.2.5 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for MailerMailer to perform differently in your installation, previous versions before 1.2.5 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 1.2.5 of MailerMailer 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 MailerMailer 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: MailerMailer

Plugin Slug: mailermailer Internal ID: 42900 Addon Type: Plugin Version: 1.2.5 Price: Free Source: WordPress.org Files: 53 (310.20kB) Short Codes: [ / ] 1 Database Tables: 0 Function Count: 22 Code Review: Search Provit

Do you need help with MailerMailer? Get professional plugin support here in no time at all

Which new files does MailerMailer add to WordPress?

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

The plugin MailerMailer added 53 new files when it was installed with WP-CLI in our WordPress test environment.

Type & Path	Size	Conflicts
wp-content/plugins/mailermailer/	310.20kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/assets/		No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/class-mailermailer.php	16.07kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/css/	1.63kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/css/admin.css	183.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/css/index.php	29.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/css/public.css	1.43kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/	263.24kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer_widget.php	19.30kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/	237.46kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/config.php	244.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/	6.80kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/addBulkMembers.php	1.28kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/addMember.php	1.12kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/getFormFields.php	767.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/ping.php	534.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/suppressMember.php	726.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/unsubBulkMembers.php	0.99kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/unsubMember.php	726.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/examples/unsuppressMember.php	729.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/LICENSE.php	1.09kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/MAILAPI_Call.php	1.49kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/MAILAPI_Client.php	5.63kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/MAILAPI_Error.php	983.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/README.md	1.74kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/	24.94kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/AddBulkMembersTest.php	6.10kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/AddMemberTest.php	3.18kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/GetFormFieldsTest.php	714.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/PingTest.php	670.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/README.md	1.21kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/SuppressMemberTest.php	1.88kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/test_config.php	178.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/test_vars.php	685.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/UnsubBulkMembers.php	5.75kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/UnsubMemberTest.php	2.32kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/tests/UnsuppressMemberTest.php	2.29kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/xmlrpc/	194.57kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/xmlrpc/xmlrpc_wrappers.inc	34.74kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/xmlrpc/xmlrpc.inc	118.79kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/mailermailer-api-php/xmlrpc/xmlrpcs.inc	41.05kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/views/	6.49kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/views/admin.php	6.46kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/includes/views/index.php	29.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/index.php	29.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/js/	2.25kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/js/index.php	29.00B	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/js/public.js	2.22kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/LICENSE.txt	17.67kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/mailermailer.php	1.43kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/README.md	3.13kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/readme.txt	4.29kB	No known conflicts with other themes or plugins.
wp-content/plugins/mailermailer/uninstall.php	470.00B	No known conflicts with other themes or plugins.

Which new shortcodes does MailerMailer add to WordPress?

The plugin MailerMailer added 1 new shortcode when it was installed with WP-CLI in our WordPress test environment.

ShortCode		Known Plugin or Theme conflicts
[mailermailer_form]		The mailermailer_form shortcode doesn't have any known conflicts with other themes or plugins.

Note: We have not yet checked to see if these shortcodes work as expected in pages, posts, sidebar widgets, or when set as the page title, in content, in the excert, in menus or anywhere else within a WordPress installation. A shortcode could produce errors due to parameters added when it is used, or if the plugin is updated and the format of the shortcode has changed.

Which new database tables are created by the WordPress plugin MailerMailer?

MailerMailer 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 MailerMailer?

When MailerMailer was activated and loaded for the first time it created 5 new options in the wp_options table. Any known conflicts will be shown in red.

Option Name		Known Conflicts
mailermailer		The mailermailer option doesn't have any known conflicts with other themes or plugins.
a:7:{i:0;b:0;s:18:"mm_user_form_title";s:12:"List Sign Up";s:21:"mm_powered_by_tagline";s:3:"yes";s:19:"mm_background_color";s:6:"F9F9F9";s:15:"mm_border_color";s:6:"DFDFDF";s:15:"mm_border_width";s:1:"1";s:13:"mm_text_color";s:6:"000000";}
mailermailer_api		The mailermailer_api option doesn't have any known conflicts with other themes or plugins.
a:2:{i:0;b:0;s:9:"mm_apikey";s:0:"";}
mailermailer_captcha_keys		The mailermailer_captcha_keys option doesn't have any known conflicts with other themes or plugins.
a:3:{i:0;b:0;s:21:"mm_public_captcha_key";s:0:"";s:22:"mm_private_captcha_key";s:0:"";}
mailermailer_refresh		The mailermailer_refresh option doesn't have any known conflicts with other themes or plugins.
a:1:{s:7:"refresh";b:1;}
widget_mailermailer_widget		The widget_mailermailer_widget option doesn't have any known conflicts with other themes or plugins.
a:1:{s:12:"_multiwidget";i:1;}

During use MailerMailer 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 MailerMailer there were 2 options still present in the wp-options table:

recently_activated
widget_mailermailer_widget

Contact MailerMailer experts for help

What new PHP functions does MailerMailer declare when it is active?

Installing MailerMailer added 22 new function 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
decode_chunked	16 conflicts	Fatal error: Cannot redeclare decode_chunked()
guess_encoding	16 conflicts	Fatal error: Cannot redeclare guess_encoding()
is_valid_charset	16 conflicts	Fatal error: Cannot redeclare is_valid_charset()
iso8601_decode	16 conflicts	Fatal error: Cannot redeclare iso8601_decode()
iso8601_encode	16 conflicts	Fatal error: Cannot redeclare iso8601_encode()
php_xmlrpc_decode	16 conflicts	Fatal error: Cannot redeclare php_xmlrpc_decode()
php_xmlrpc_decode_xml	16 conflicts	Fatal error: Cannot redeclare php_xmlrpc_decode_xml()
php_xmlrpc_encode	16 conflicts	Fatal error: Cannot redeclare php_xmlrpc_encode()
xmlrpc_cd	16 conflicts	Fatal error: Cannot redeclare xmlrpc_cd()
xmlrpc_dh	16 conflicts	Fatal error: Cannot redeclare xmlrpc_dh()
xmlrpc_ee	16 conflicts	Fatal error: Cannot redeclare xmlrpc_ee()
xmlrpc_ee_fast	16 conflicts	Fatal error: Cannot redeclare xmlrpc_ee_fast()
xmlrpc_encode_entitites	15 conflicts	Fatal error: Cannot redeclare xmlrpc_encode_entitites()
xmlrpc_se	16 conflicts	Fatal error: Cannot redeclare xmlrpc_se()
xmlrpc_se_any	16 conflicts	Fatal error: Cannot redeclare xmlrpc_se_any()
has_encoding	0 conflicts	Fatal error: Cannot redeclare has_encoding()
mailermailer_display_signup_form	0 conflicts	Fatal error: Cannot redeclare mailermailer_display_signup_form()
mailermailer_get_countries	0 conflicts	Fatal error: Cannot redeclare mailermailer_get_countries()
mailermailer_get_states	0 conflicts	Fatal error: Cannot redeclare mailermailer_get_states()
mailermailer_register_widget	0 conflicts	Fatal error: Cannot redeclare mailermailer_register_widget()
mailermailer_shortcode	0 conflicts	Fatal error: Cannot redeclare mailermailer_shortcode()
mailermailer_signup_form	0 conflicts	Fatal error: Cannot redeclare mailermailer_signup_form()

Using MailerMailer 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 MailerMailer from the command line with WP-CLI

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

wp plugin install mailermailer

How to activate MailerMailer from the command line with WP-CLI

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

wp plugin install mailermailer --activate

How to reinstall MailerMailer from the command line with WP-CLI

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

wp plugin install mailermailer --force

How to update MailerMailer to the latest version from the command line with WP-CLI

wp plugin update mailermailer

How to delete MailerMailer from the command line with WP-CLI

wp plugin delete mailermailer

Where can you download earlier versions of MailerMailer?

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 MailerMailer 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 MailerMailer

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 MailerMailer. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.