To apply formatting to text within your messages, highlight the text you want to format and choose the appropriate option from the composer toolbar, below the subject line. At present, Mailspring supports:

• Bold
• Italics
• Underline
• Strikethrough
• Fonts (including monospace)
• Colors
• Text size (small, normal, large, huge)
• Hyperlinks
• Block quotes
• Code blocks
• Numbered lists
• Bullet points