Privacy Policy

Last updated: October 18, 2026

SMTPKeep is an email relay operated from Canada. It accepts email from devices you configure and sends it through your organization's Microsoft 365 mailboxes. Contact: support@smtpkeep.com.

Email you send through SMTPKeep

Messages are held in memory only long enough to hand them to Microsoft 365, then discarded. SMTPKeep never stores message bodies, attachments or subjects. For each message it records the time, device, sending mailbox, number of recipients, size and result (sent, deferred or failed, with Microsoft's error text). These records are deleted after 30 days.

Microsoft 365 access

When a Global Administrator connects a tenant, SMTPKeep receives the application permission Mail.Send for that tenant. It uses it only to send messages submitted by your configured devices, as the mailbox configured for each device, and for test messages you request. It does not read, list or delete mail. Sign-in uses the openid, profile and email scopes to identify your account.

Account data

We store your name, work email, Microsoft account and tenant identifiers, tenant labels, device names, device usernames, hashed device passwords (scrypt) and allowed IP ranges.

Billing

Payments are processed by Stripe under the Stripe Privacy Policy. SMTPKeep receives your billing email, plan and subscription status, never your full card number.

Sharing

We do not sell or share your data. Messages are delivered by Microsoft as part of your Microsoft 365 service.

Deletion

Disconnecting a tenant stops all sending immediately. Email support@smtpkeep.com to delete your account and its records. Remove the SMTPKeep enterprise application in Microsoft Entra ID to revoke its permission on Microsoft's side.