Side by side
au Mail vs Fastmail Email
Both stand on personal email services. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneWeb
au Mail provides au-branded addresses with mobile apps, browser access, and practical organization tools. Eligibility requirements, mailbox limits, and automatic deletion rules should be checked before relying on it for long-term storage.
Visit au Mail
Free trial AndroidAPIiPhone+4
Fastmail Email combines private paid email with calendars, contacts, storage, broad protocol support, and multi-platform apps. Plans range from 4.00 USD to $14 a month, with storage and account allowances varying by plan.
Visit Fastmail EmailThe facts
| au Mail | Fastmail Email | |
|---|---|---|
| Free plan | Yes | A free trial |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Web | Android, API, iPhone, Linux, Mac, Web, Windows |
| Lowest paid plan | Free or on request | Basic: $4 per user a month |
| Plans published | 3 | 6 |
| Maker | au Mail | Fastmail Email |
| Website | au.com | fastmail.com |
| On personal email services | #85 of 115 | #89 of 115 |
au Mail: what it does well
- Addresses use au.com or ezweb.ne.jp domains
- Web access included for eligible au customers
- Folders and automatic message sorting
- Saved filters display matching emails
- Authentication features help suppress spoofing
What to know first
- Requires au mobile service and LTE NET or 5G NET
- Mailbox limits vary by access and membership
- Messages over storage limits are deleted
- Webメール unavailable on three mamorino models
Fastmail Email: what it does well
- No ads or third-party data sharing
- Supports major mail and calendar protocols
- Apps cover desktop and mobile platforms
- EU or US residency choice
- 24/7 support from real people
What to know first
- No free plan
- Paid service only
- No built-in end-to-end encryption
- Custom domain is not offered
Alternatives to au Mail Alternatives to Fastmail Email The whole list