Simple, secure email on your company's domain.

KoMail is business email on the web and in the app (Android / iPhone). You keep the domain you already own (e.g. [email protected]) and pick the storage of each mailbox: 500 MB, 1 GB or 2 GB.

Plans (per mailbox, per month)

500 MB
Light 500 MB
¥300/month + tax (10%)
1 GB
Standard 1 GB
¥500/month + tax (10%)
2 GB
Pro 2 GB
¥800/month + tax (10%)

Anti-spam: new customers start with a sending limit (50 per hour, 200 per day). This is not a bulk-mail or marketing service.

How it works

1. Sign up (domain and first address)
2. DNS (MX, SPF, DKIM, DMARC) — just copy the values on screen
3. Komori reviews and approves
4. Live! Use it on the web, in the app or in Outlook

Sign up

I already signed up → Sign in

Used to reach you before activation and to sign in to this page.
A domain your company already owns (e.g. your-company.com). You must be able to edit its DNS.
@your-company.co.jp