Plaintext for the Newsletter plugin

Version 3.2

• Replaced use of deprecated filter ‘newsletter_message_text’ with ‘newsletter_message’.

Version 3.1

• Verified compatibility with WP 6.3
• Removed support for built-in SMTP. Requires Newsletter 7.8.0 or higher.

Version 3.0

• Verified compatibility with PHP 8.1.
• Improved integration with Newsletter plugin’s built-in plaintext capability.

Version 2.4

• Fixed PHP Notice “Undefined index”.

Version 2.3

• Now compatible with Newsletter’s free SMTP add-on.
• Verified compatibility with PHP 7.4

Version 2.2

• Verifed compatibility with WP 5.6 and Newsletter 7.0.1.
• Fixed PHP warnings.

Version 2.1

• Display a warning if another plugin has replaced the wp_mail() function.

Version 2.0

• Optional automatic generation for newsletters. Manual generation also still supported.
• Optional automatic generation for transactional emails.
• Improved plain text look.

Version 1.0

• Beta period finished. No code changes since 0.4.

Version 0.4

• Initial version. Please provide feedback on the Support forum.