wp_mail return-path Plugin

This plugin sets the PHPMailer Sender (return-path) the same as the From address if it’s not correctly set.

Mitigates the “via” and “The actual sender of” Notification in Outlook and stops email going to spam/junk because of the mismatch between From and Return-Path headers.

This usually occurs on shared hosting servers when local user / domain is used as default for the return-path header and WordPress only sets the From header.

1. Unzip all files to the /wp-content/plugins/ directory
2. Log into WordPress admin and activate the ‘Latest Tweets’ plugin through the ‘Plugins’ menu

1.1.1

• Tested with 6.3

1.1.0

• Tested with 5.6.1
• Fixed typo on filter_var
• Changed to a singleton class

1.0.3

• Tested with WordPress 4.9.4

1.0.2

• Now only sets the sender if it’s not already set with a valid email address.

1.0.1

• Tested on 4.4

1.0.0

• Inital Release

0.0.1

• Beta Release