Configure SMTP

Configure SMTP mailing in WordPress, including support for sending email via SSL/TLS (such as Gmail).

This plugin is the official successor to the original SMTP plugin for WordPress (wpPHPMailer).

Use this plugin to customize the SMTP mailing system used by default by WordPress to handle outgoing emails. It offers you the ability to specify:

• SMTP host name
• SMTP port number
• If SMTPAuth (authentication) should be used
• SMTP username
• SMTP password
• If the SMTP connection needs to occur over ssl or tls

In addition, you can instead indicate that you wish to use Gmail to handle outgoing email, in which case the above settings are automatically configured to values appropriate for Gmail, though you’ll need to specify your Gmail email address (including the “@gmail.com”) and password.

Regardless of whether SMTP is enabled, the plugin provides you the ability to define the name and email of the ‘From:’ field for all outgoing emails.

A simple test button is also available that allows you to send a test email to yourself to check if sending email has been properly configured for your site.

Links: Plugin Homepage | Plugin Directory Page | GitHub | Author Homepage

3.2 (2016-11-14)

• New: Add unit tests.
• Change: Handle ‘Send email via Gmail?’ checkbox changes with JS event listener rather than explicit ‘onclick’.
• Change: Move JS into file and enqueue rather outputting directly into footer.
• Change: Update plugin framework to 045. (Too many changes to list.)
• Change: Improve singleton implementation.
  • Add get_instance() static method for returning/creating singleton instance.
  • Make static variable ‘instance’ private.
  • Make constructor protected.
  • Make class final.
  • Additional related changes in plugin framework (protected constructor, erroring __clone() and __wakeup()).
• Change: Cast submitted ‘smtp_auth’ (bool), ‘port’ (int), and ‘wordwrap’ (int) values to proper type before use.
• Change: Verify submitted ‘smtp_secure’ value is one of the viable options.
• New: Add class constant SETTING_NAME (to store setting name) and use it in uninstall().
• Change: Remove pre-WP3.2-only JavaScript code.
• Change: Use explicit path when requiring plugin framework.
• Fix: Explicitly declare activation() and uninstall() static.
• Fix: For options_page_description(), match method signature of parent class.
• Change: Add support for language packs:
  • Set textdomain using a string instead of a variable.
  • Remove .pot file and /lang subdirectory.
• Change: Discontinue use of PHP4-style constructor.
• Change: Prevent execution of code if file is directly accessed.
• Change: Minor code reformatting (spacing, bracing, conditional comparison order).
• Change: Minor documentation reformatting (spacing, punctuation).
• Change: Re-license as GPLv2 or later (from X11).
• New: Add ‘License’ and ‘License URI’ header tags to readme.txt and plugin file.
• New: Add LICENSE file.
• New: Add empty index.php to prevent files from being listed if web server has enabled directory listings.
• Change: Use ’email’ instead of ‘e-mail’ on-screen and in documentation.
• Change: Use ‘Gmail’ instead of ‘GMail’ on-screen and in documentation.
• Change: Remove file-ending PHP close tag.
• Change: Reformat plugin header.
• Change: Note compatibility through WP 4.7+.
• Change: Dropped compatibility with version of WP older than 4.2.
• Change: Update donate link.
• Change: Update copyright date (2017).

3.1

• Add new debugging configuration option
• Fix bug that resulted from WP 3.2’s update to a new phpmailer
• Fix bug with checking ‘Use GMail?’ did not auto-reset settings accordingly (jQuery bug regarding .attr() vs .prop() introduced in jQ 1.6 in WP 3.2)
• Fix to call add_filter() instead of add_action() for ‘wp_mail_from’ (props Callum Macdonald)
• Fix to call add_filter() instead of add_action() for ‘wp_mail_from_name’
• Store error messages for later display rather than immediately outputting (too early)
• Save a static version of itself in class variable $instance
• Deprecate use of global variable $c2c_configure_smtp to store instance
• Add explicit empty() checks in a couple places
• Delete plugin settings on uninstallation
• Add __construct(), activation(), and uninstall()
• Add more FAQ questions
• Regenerate .pot
• Update plugin framework to version 023
• Note compatibility through WP 3.2+
• Drop compatibility with versions of WP older than 3.0
• Explicitly declare all functions as public and class variables as private
• Minor code formatting changes (spacing)
• Update copyright date (2011)
• Add plugin homepage and author links in description in readme.txt

Full changelog is available in CHANGELOG.md.

1. Whether installing or updating, whether this plugin or any other, it is always advisable to back-up your data before starting.
2. Install via the built-in WordPress plugin installer. Or install the plugin code inside the plugins directory for your site (typically /wp-content/plugins/).
3. Activate the plugin through the ‘Plugins’ admin menu in WordPress
4. Go to “Settings” -> “Configure SMTP” and configure the plugin’s settings. (You can also use the “Settings” link in the plugin’s entry on the admin “Plugins” page).
5. (Optional.) Use the built-in test tool (also located on the plugin’s settings page) to see if your blog can properly send out emails.