Key points
- Google: 14-day trial only
- Microsoft: 1-month trial
- Zoho: 5 users/5GB
- Proton: 1 address
- NevTan Mail: 10 mailboxes/1GB each
How to do it
- List your mailbox needs
- Compare free tier limits
- Check custom domain availability on free
- Watch for ads/data selling
Common mistakes
- Assuming free = no catch
- Free tiers without custom domain
- Free tiers that scan mail
The most generous free tier — freeNo card required — free forever up to 10 mailboxes.