No. 78of 116 ·Personal Email Services

au Mail

Web · Android · iPhone

Freedom report

Three barsScore 6.2

Free tierA free tier is on its own pricing page
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

au Mail is ranked #78 of 116 in personal email services on Freedom251, made by au Mail (Tokyo, Japan). It runs on Android, iOS, Web. There is a free plan.

au Mail plans and pricing

All plans

Standard au Mail Available to au mobile customers with 5G NET or LTE NET · Web Mail access is included without an additional charge · Supports au.com and ezweb.ne.jp addresses au.com · 19 Sept 2026

au Mail Portability Keeps an au.com or ezweb.ne.jp address after cancelling au service · Includes spam filtering and automatic forwarding · Provides 400 MB or 5,000 messages with unlimited retention au.com · 19 Sept 2026

auメール Free 月額利用料無料通信料が必要 · 5G NETまたはLTE NETへの加入が必要 au.com · 11 Oct 2026

Compared on personal email services

Free plan: Yes
Mailbox storage: 0.4 GB
Custom domain: No
Platform access: web_and_mobile

Best au Mail alternatives

See all 20

Two bars Proton Mail Free tier No. 1Free8.3 Two bars Zoho Mail Free tier No. 2$0.08/mo8.3 Two bars Gmail Free tier No. 3$1.99/mo8.2 Two bars Outlook.com Free tier No. 4$1.99/mo8.1 Two bars eclipso Mail Europe Free tier No. 5€1.49/mo8.1 Two bars mail.ch Free tier No. 6CHF 3.49/mo8.0

The record

Email service: auメール provides email addresses using the @au.com or @ezweb.ne.jp domains.
Web access: Customers can access auメール from a PC or tablet browser by logging in with an au ID.
Web eligibility: Webメール is available without an additional fee to customers with an au mobile phone or tablet and LTE NET or 5G NET.
Android app: The auメール app is available for supported au Android smartphones and tablets, with distribution through Google Play for models released from summer 2020 onward.
iPhone and iPad: The service supports iPhone and iPad email apps, and Webメール can be used from a tablet browser.
Organization: The official au page identifies KDDI Corporation as its copyright holder.
Mail organization: The auメール app supports creating folders, manually or automatically sorting messages, and setting notification sounds by folder.
Filters: Users can save filter conditions to display only emails that match them.
Mailbox limits: For au smartphones and 4G LTE phones, normal use provides 200 MB, 500 messages, and 30 days; Webメール increases this to 400 MB and 5,000 messages, or 1 GB and 20,000 messages for Ponta Pass members.
Automatic deletion: Messages that exceed mailbox storage limits are deleted starting with the oldest, and messages in the trash may be automatically deleted after 45 days.
Phishing protection: KDDI says it introduced DMARC and DKIM authentication to suppress spoofed mail and BIMI icons to help identify official senders.
Compatibility limit: Webメール is unavailable to users of the mamorino, mamorino2, and mamorino3 devices.
Headquarters: Tokyo, Japan
Price from: Free

Where it ranks on Freedom251

Best Personal Email Services in 2026#78 of 116

Is au Mail yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote au Mail

Sources

au.com/mobile/service/email/· checked 11 Oct 2026
au.com/mobile/service/webmail/· checked 11 Oct 2026
au.com/mobile/service/email/update/· checked 11 Oct 2026
au.com/information/topic/mobile/2023-024/· checked 11 Oct 2026
au.com/mobile/service/aumail_portability/· checked 19 Sept 2026