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SPECIFICTION
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au Mail

au.com

Free plan WebiOSAndroid
Visit au.com
Spec score 7.5 #103 of 115 in Personal Email Services

Spec sheet

Free plan
YesRead 19 Sep 2026 · au.com
Headquarters
Tokyo, JapanRead 28 Sep 2026 · au.com
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.Read 11 Oct 2026 · au.com
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.Read 11 Oct 2026 · au.com
Compatibility limit
Webメール is unavailable to users of the mamorino, mamorino2, and mamorino3 devices.Read 11 Oct 2026 · au.com
Custom domain
NoRead 19 Sep 2026 · au.com
Email service
auメール provides email addresses using the @au.com or @ezweb.ne.jp domains.Read 11 Oct 2026 · au.com
Filters
Users can save filter conditions to display only emails that match them.Read 11 Oct 2026 · au.com
iPhone and iPad
The service supports iPhone and iPad email apps, and Webメール can be used from a tablet browser.Read 11 Oct 2026 · au.com
Mail organization
The auメール app supports creating folders, manually or automatically sorting messages, and setting notification sounds by folder.Read 11 Oct 2026 · au.com
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.Read 11 Oct 2026 · au.com
Mailbox storage
0.4Read 19 Sep 2026 · au.com
Organization
The official au page identifies KDDI Corporation as its copyright holder.Read 11 Oct 2026 · au.com
Phishing protection
KDDI says it introduced DMARC and DKIM authentication to suppress spoofed mail and BIMI icons to help identify official senders.Read 11 Oct 2026 · au.com
Platform access
web_and_mobileRead 19 Sep 2026 · au.com
Web access
Customers can access auメール from a PC or tablet browser by logging in with an au ID.Read 11 Oct 2026 · au.com
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.Read 11 Oct 2026 · au.com

Plans and prices

Standard au Mail Price not published 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 Read 19 Sep 2026 · au.com
au Mail Portability Price not published 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 Read 19 Sep 2026 · au.com
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 Read 11 Oct 2026 · au.com

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Where Specifiction places it

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