[Date]

[Recipient’s Name]
[Recipient’s Address]
[City, State, Zip Code]

Dear [Recipient’s Name],

I am writing to acknowledge and express my gratitude for [specific action, contribution, or item received]. Your [specific details] has been of immense help to [purpose or project]. We highly appreciate your contribution and the support you have shown.

Thank you once again for your generosity and commitment.

Sincerely,
[Your Name]
[Your Position]
[Your Organization]