So-net Mail Pricing in 2026
Every plan So-net Mail publishes, with the page and date we read it from. Prices we could not find on So-net Mail's own site are left blank, never guessed.
| Plan | Price | Billing | Limits | Source |
|---|---|---|---|---|
| Basic Mailbox | Unlimited mailbox capacity · Unlimited stored messages · 2 months message retention | so-net.ne.jp | ||
| IMAP Service | 3 GB storage · Unlimited stored messages · 2 years inbox, sent and draft retention · 14 days spam and trash retention | so-net.ne.jp | ||
| So-net Webメール | Free | 無料 · So-netメールアドレス利用者向け | so-net.ne.jp | |
| So-net IMAPサービス | 料金ページで金額を確認できませんでした | 3GB · 保存通数無制限 · 受信箱/送信箱/下書き2年間 · 作成フォルダ無期限 | so-net.ne.jp |