Both emails and formal business letters should be drafted professionally, but they have important differences.
1. Volume & Simplicity
The typical person receives tens to hundreds of emails every day.
✓ Simplicity is appreciated
✓ No need for introduction/body/conclusion structure
2. Tone Flexibility
Email allows for more informal expressions, especially if you know your recipient.
⚠️ Important: Informal ≠ Unprofessional
There is no magic rule for how formal your email should be.
It depends on:
- Who the recipient is
- Your corporate culture
- Your existing relationship with the recipient