Hi [Recipient’s Name],
Just a quick note to let you know we’ve got some scheduled maintenance on [Date] from [Start Time] to [End Time].
During this time, [specific service or system] will be temporarily unavailable. We’re doing this to [reason for maintenance, e.g., “upgrade our servers for better performance”].
Thanks for your patience while we make things better for you. If you have questions, reply to this email—we’re here to help!
Best,
[Your Company Name]