Feature: #87200 - Send plaintext and HTML mails in EmailFinisher ¶
See Issue #87200
of EXT:form now sends mails with a plaintext and an HTML part.
A new option
has been added to configure if a HTML part should be added to mails.
Mails now contain both plaintext and HTML parts to support a wider audience.
Enforcing a plaintext-only mail increases reception and security.