v1.8.3

• fixed: handle a non-array return from wp_mail filter hook

v1.8.2

• fixed: deprecation warnings in PHP 8.1+

v1.8.1

• fixed: fatal exception when an email address was invalid

v1.8.0

• fixed: mock PHPMailer object did not have recipient addresses for developers to inspect (thanks, SpartakusMd!)

v1.7.0

• fixed: WordPress 5.5 compatibility

v1.6.3

• fixed: unhandled phpmailerException exceptions (thanks, y0uri!)

v1.6.2

• fixed: activating the must-use plugin throws an error if the mu-plugins folder is missing
• changed: can now enable both a Toolbar indicator and a site-wide admin notice when emails are disabled
• changed: filter hook disable_emails_indicator also accepts 'notice_toolbar' to enable both notice and Toolbar indicator

v1.6.1

• fixed: Toolbar indicator has no visible slash in Sunrise admin theme
• fixed: undefined function is_plugin_active_for_network() (thanks isabelc!)

v1.6.0

• fixed: undefined index for $_SERVER['SERVER_NAME'] when emails sent during wp-cli
• added: indicator setting to show either a Toolbar indicator or a site-wide admin notice when emails are disabled
• added: filter hook disable_emails_indicator for setting the indicator from code; accepts 'none', 'toolbar', 'notice'

v1.5.0

• fixed: PHP notice -- Trying to get property 'ErrorInfo' of non-object
• changed: requires minimum PHP 5.6; recommend PHP 7.3+
• added: support for running the plugin as a must-use plugin (mu-plugin)