公式窓口へ確認するための学習用例文。相手が疑わしい場合に連絡を続ける指示ではありません。角括弧は事実に合わせ、ない番号等は削除します。

verify
Subject: Verification of a recruitment message — [role / job ID]

Hello,
I received a message about the [role] position, reference [job ID], from someone identifying themselves as [name / agency].
Before sharing further information, could you confirm whether this opening is genuine and whether this person or agency is authorized to recruit for it?
I found this contact address independently on your official website.

Thank you,
[your name]

documents
Could you explain why this document is needed at this stage and confirm the official submission process?
Please also let me know which information is required and who will receive it.

pause
I need to verify the recruitment process independently before making any payment or submitting identity documents.
I will not proceed until I have confirmed the details through the company's official contact channel.
