au Mail

Freemium#108 of 115 in Personal Email Services

au Mail: A practical au-linked mailbox with useful basics and paid address portability. Ranked #108 of 115 in Personal Email Services by our editors (6.0/10); pricing: Free plan; best for au subscribers wanting portable email.

6.0/10★★★☆☆Editor score

Visit au Mail

au Mail6.0 Visit au Mail

At a glance

• Editor score
  6.0 / 10
• Pricing
  Free plan
• Best for
  au subscribers wanting portable email
• Free plan
  Yes
• Mailbox storage
  0.4 GB
• Facts checked
  19 Sep 2026

• Where it wins

  • Web and mobile access, including iPhone and Android apps
  • Folders, search, saved filters, forwarding, and spam filtering
  • Portability keeps an au.com or ezweb.ne.jp address after cancellation

• Where it doesn't

  • Standard service requires au mobile eligibility
  • Portability starts at 330 for only 400 MB of storage
  • No custom domain support

Our verdict on au Mail

au Mail is KDDI’s email service for au mobile customers who want an au.com or ezweb.ne.jp address. It suits subscribers who want email alongside their au mobile service, with browser access from computers and tablets and mobile apps for Android and iPhone. The standard service has no separate monthly usage fee, but it is not a standalone mailbox signup for people without eligible au service.

For everyday organization, au Mail includes folders, manual or automatic sorting, saved search filters, message search, spam filtering, forwarding, and file attachments. Users can access the service through Web Mail, the Android au Mail app, or iPhone Mail, and the listed integrations include au ID. This is a focused email offering rather than a broad custom-domain service: it provides au addresses and the core tools to manage messages, but does not support custom domains.

Portability is the main reason to consider the paid option. According to the published plan details, au Mail Portability keeps an au.com or ezweb.ne.jp address active after cancelling au service and adds spam filtering and automatic forwarding. The plan includes 400 MB or 5,000 messages with unlimited retention, and the starting price is 330. That storage allowance makes the price a meaningful trade-off for anyone with a large mailbox. Choose au Mail if you are an au subscriber who values keeping an established address after leaving; those seeking a standalone mailbox, a custom domain, or more storage for the cost should look elsewhere.

Your product? Our editors can test au Mail in depth and publish a review, labelled as paid · from $149/mo →

au Mail pricing

All 2 au Mail plans and prices →

au Mail fact sheet

au Mail integrations

au Mail lists 3 integrations on its own site.

• au ID
• iPhone Mail
• Android au Mail app

Alternatives to au Mail

• GmailA capable free inbox with shared Google storage and a paid path to more space.9.4
• Outlook.comA capable free email service with useful organization tools and Microsoft 365 upgrades.9.2
• Proton MailA privacy-focused email service with strong encryption, migration tools, and broad platform coverage.9.0

See all au Mail alternatives →

Featured on iTechGuides

au Mail is listed in our Personal Email Services directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update