Thunderbird has a unique formatting feature that allows you to view basic text formatting without using HTML. For instance, if you view a message surrounded by an underline character, Thunderbird ...

Thunderbird is Mozilla's free, open-source email client, capable of sending rich-text messages by using HTML. When you open a Thunderbird message, it operates like most rich-text editors: you ...

With Markdown, writing HTML-formatted documents is as easy as writing plain text. Software developers use it, but so do many others. The Markdown text format makes it easy for people—not only ...

Open Pages (it’s free to install). Format your signature. Select the text (and images, if any) and copy it. Go to Settings > Mail > Signature and paste in.; This works with any iOS or iPadOS ...