Quick Mail 3.0.2 includes an option to convert lines of text to HTML paragraphs. Tested with WP 4.7.4 and TinyMCE Advanced.

Quick Mail sends email to multiple recipients, with multiple attachments from WordPress dashboard. Quick Mail 3.0.1 adds a BCC option and improves HTML emails.

Quick Mail sends email to multiple recipients, with multiple attachments from WordPress dashboard. Quick Mail 3.0.0 improves accessibility and adds rich text messages, including WordPress shortcodes.