21CN Mail vs Fastmail Email
| 21CN Mail | Fastmail Email | |
|---|---|---|
| Platforms | Web, iOS, Android | Web, Windows, macOS, Linux, iOS, Android |
| Free plan | Yes | No |
| Mailbox storage | 16 GB | 5 GB |
| Ad-free inbox | No | Yes |
| Platform access | web_and_mobile | web_mobile_desktop |
| Attachment limit | 50 MB | |
| Custom domain | No | |
| Email aliases | Yes |
Listed together in Best Personal Email Services