REV Lite

Watch the 30-second demo: https://www.youtube.com/watch?v=N4BUtguh4UM REV Lite is the free edition of REV (Real-time Email Validation) by Mail Cleaning Window (Primo Posto Co., Ltd., Japan). It checks the email fields of your forms while visitors type, before the form is sent:

• Syntax errors – missing or extra "@", invalid characters. Full-width characters are converted automatically.
• Domain typos – e.g. "gmial.com" → suggests "gmail.com", fixed with one click.
• Disposable addresses – blocks throw-away email services.
• Domains that cannot receive email – no MX record, parked domains.

It works on any form in the browser. In addition, it checks again on the server when the form is submitted (this also stops bots that skip JavaScript) for:

• Contact Form 7
• MW WP Form (turn on the "REV Lite" validation rule for each email field)
• Snow Monkey Forms
• WPForms

See the results The settings page shows how many errors were stopped before sending, how many typos visitors fixed with the suggestion, a breakdown by type of error and by month, and the most common typos. Privacy by design Only the domain part of the address (the part after "@") is sent to the REV Lite service. The full email address never leaves the visitor's browser or your server. Free period A usage key is free for one year from registration. When the free period ends, the service stops checking domains and lets every submission through, so your forms never break. The syntax check in the browser keeps working. Paid edition The paid edition (REV) also verifies each address one by one, including user names that do not exist, using the same usage key. It is a separate service; see the service page for details. 日本語 フォームのメールアドレス欄を、使い捨てアドレス・ドメインの打ち間違い・形式の誤りから、入力中にその場で守る無料プラグインです（1 年間無料）。「メールクリーニングの窓口」（株式会社プリモポスト）が提供する、リアルタイム・メールアドレスチェック「REV」の無料版です。送るのは @ より後ろのドメインだけで、メールアドレス全体は外部に送りません。

0.1.1

• Removed the bundled Japanese translation. Translations are now delivered as WordPress.org language packs.

0.1.0

• First release.