Mailchimp

<p>Use the Mailchimp List Subscribe plugin to quickly add a Mailchimp signup form block, widget, or shortcode to your WordPress site.</p>
<p>After installation, if you already have a Mailchimp account, you’ll log in with that account and then proceed to configure settings.</p>
<p>If you don’t have an account, you can create one directly in the plugin. After entering in all your personal details, you’ll need to activate your account via an email that will be sent to you. Once done, you’ll proceed to configure settings.</p>
<p>On the settings screen, you’ll select your Mailchimp list, choose merge fields and groups, and configure other options. Once done, you can now add the block, widget, or shortcode (<code>[mailchimpsf_form]</code>) to your site. Typically, installation and setup will take about 5-10 minutes, and absolutely everything can be done via the WordPress Setting GUI, with no file editing at all.</p>
<p>WordPress.com compatibility is limited to Business tier users only. <a href="https://mailchimp.com/help/ways-to-add-a-signup-form-in-wordpress/" rel="nofollow ugc">How to add a signup form if you have a WordPress.com site</a>.</p>
<h3>Access Token Encryption</h3>
<p>Starting in version 1.6.0, authentication has changed to use OAuth. As part of this process, we retrieve an access token that can be used to make API requests. To provide a high-level of security, this access token is encrypted before being stored in the WordPress database. In order to ensure this access token can be decrypted when used, the plugin relies on certain security constants that should remain unchanged.</p>
<p>With no additional configuration, we use the standard <code>LOGGED_IN_KEY</code> and <code>LOGGED_IN_SALT</code> constants that are normally set in your site’s <code>wp-config.php</code> file. Some sites make use of security plugins that rotate these constants on a periodic basis. When this happens, we won’t be able to decrypt the access token and you’ll need to reconnect your Mailchimp account to generate a new access token.</p>
<p>To prevent such issues, it is recommended to define two additional constants in your site’s <code>wp-config.php</code> file: <code>MAILCHIMP_SF_ENCRYPTION_KEY</code> and <code>MAILCHIMP_SF_ENCRYPTION_SALT</code>. These constants should consist of a combination of characters, preferably at least 32 characters long. Once set, these values should not be changed. For strong values, you can copy some of the values from <a href="https://api.wordpress.org/secret-key/1.1/salt/" rel="nofollow ugc">here</a> and use them. You’ll end up with additional code like the following in your <code>wp-config.php</code> file:</p>
<pre><code>define( 'MAILCHIMP_SF_ENCRYPTION_KEY', 'put your unique phrase here' );
define( 'MAILCHIMP_SF_ENCRYPTION_SALT', 'put your unique phrase here' );
</code></pre>
<p>If these constants are added after you’ve already authenticated with Mailchimp, you will need to reconnect your account. To avoid this, you can copy the values from <code>LOGGED_IN_KEY</code> and <code>LOGGED_IN_SALT</code> (if they exist) to <code>MAILCHIMP_SF_ENCRYPTION_KEY</code> and <code>MAILCHIMP_SF_ENCRYPTION_SALT</code> respectively.</p>
<h3>Upgrading</h3>
<p>If you are upgrading to version 1.2.1 and you used the widget in your sidebar previously, all you need to do is drag the <code>Mailchimp Widget</code> back into the sidebar, visit the Mailchimp settings page (which will have maintained your prior settings), click the “Update List” button, and you’re done!</p>


Mailchimp List Subscribe Form

Add a Mailchimp signup form block, widget, or shortcode to your WordPress site.

Scott Reilly

<p>Allow multiple user accounts to be created, registered, and updated having the same email address.</p>
<p>By default, WordPress only allows a specific email address to be used for a single user account. This plugin removes that restriction.</p>
<p>The plugin’s settings page (accessed via Users -> Multiple Accounts or via the Settings link next to the plugin on the Manage Plugins page) provides the ability to allow only certain email addresses the ability to have multiple accounts (such as if you only want admins to have that ability; by default all email addresses can be used more than once). You may also specify a limit to the number of accounts an email address can have (by default there is no limit).</p>
<p>The settings page also provides a table listing all user accounts that share email addresses (see screenshot).</p>
<p>Compatible with Multisite and BuddyPress as well.</p>
<p>Links: <a href="http://coffee2code.com/wp-plugins/allow-multiple-accounts/" rel="nofollow ugc">Plugin Homepage</a> | <a href="https://wordpress.org/plugins/allow-multiple-accounts/" rel="ugc">Plugin Directory Page</a> | <a href="http://coffee2code.com" rel="nofollow ugc">Author Homepage</a></p>
<h3>Template Tags</h3>
<p>The plugin provides three optional template tags for use in your theme templates.</p>
<h4>Functions</h4>
<ul>
<li><code><?php c2c_count_multiple_accounts( $email ); ?></code></li>
</ul>
<p>Returns a count of the number of users associated with the given email.</p>
<ul>
<li><code><?php c2c_get_users_by_email( $email ); ?></code></li>
</ul>
<p>Returns the users associated with the given email.</p>
<ul>
<li><code><?php c2c_has_multiple_accounts( $email ); ?></code></li>
</ul>
<p>Returns a boolean indicating if the given email is associated with more than one user account.</p>
<h4>Arguments</h4>
<ul>
<li><code>$email</code> (string)<br />
An email address.</li>
</ul>
<h3>Filters</h3>
<p>The plugin exposes three filters for hooking. Typically, customizations utilizing these hooks would be put into your active theme’s functions.php file, or used by another plugin.</p>
<h4>c2c_count_multiple_accounts (filter)</h4>
<p>The ‘c2c_count_multiple_accounts’ hook allows you to use an alternative approach to safely invoke <code>c2c_count_multiple_accounts()</code> in such a way that if the plugin were deactivated or deleted, then your calls to the function won’t cause errors in your site.</p>
<p>Arguments:</p>
<ul>
<li>same as for <code>c2c_count_multiple_accounts()</code></li>
</ul>
<p>Example:</p>
<p>Instead of:</p>
<pre><code><?php echo c2c_count_multiple_accounts( $email ); ?>
</code></pre>
<p>Do:</p>
<pre><code><?php echo apply_filters( 'c2c_count_multiple_accounts', $email ); ?>
</code></pre>
<h4>c2c_get_users_by_email (filter)</h4>
<p>The ‘c2c_get_users_by_email’ hook allows you to use an alternative approach to safely invoke <code>c2c_get_users_by_email()</code> in such a way that if the plugin were deactivated or deleted, then your calls to the function won’t cause errors in your site.</p>
<p>Arguments:</p>
<ul>
<li>same as for <code>c2c_get_users_by_email()</code></li>
</ul>
<p>Example:</p>
<p>Instead of:</p>
<pre><code><?php echo c2c_get_users_by_email( $email ); ?>
</code></pre>
<p>Do:</p>
<pre><code><?php echo apply_filters( 'c2c_get_users_by_email', $email ); ?>
</code></pre>
<h4>c2c_has_multiple_accounts (filter)</h4>
<p>The ‘c2c_has_multiple_accounts’ hook allows you to use an alternative approach to safely invoke <code>c2c_has_multiple_accounts()</code> in such a way that if the plugin were deactivated or deleted, then your calls to the function won’t cause errors in your site.</p>
<p>Arguments:</p>
<ul>
<li>same as for <code>c2c_has_multiple_accounts()</code></li>
</ul>
<p>Example:</p>
<p>Instead of:</p>
<pre><code><?php echo c2c_has_multiple_accounts( $email ); ?>
</code></pre>
<p>Do:</p>
<pre><code><?php echo apply_filters( 'c2c_has_multiple_accounts', $email ); ?>
</code></pre>


Allow Multiple Accounts

Does what it says.
Thanks for the plugin.



Great plugin

Allow multiple user accounts to be created, registered, and updated having the same email address.

Mailchimp List Subscribe Form vs Allow Multiple Accounts