How MailOnce Handles Temporary Inbox Data
Follow Free inbox data through active use, logical closure, a 24-hour closed-data retention window and physical purge.
Quick answer
Follow Free inbox data through active use, logical closure, a 24-hour closed-data retention window and physical purge.
One inbox, one owned data graph
Temporary inbox data belongs to an address-owned graph. While the inbox is active, that graph supports message delivery, OTP extraction and normal inbox use; after closure it follows a bounded retention-and-purge path.
For MailOnce Free, expiry or deletion closes the address first. Closed inbox data is retained for exactly 24 hours before it becomes eligible for hard purge by the cleanup worker.
Keep closure and physical purge separate
This is a bounded retention-and-purge policy, not instant deletion at the second the timer reaches zero and not permanent storage. There is currently no public immediate-purge endpoint and no Plus/account retention policy implemented in this phase.
Follow Free inbox data through active use, logical closure, a 24-hour closed-data retention window and physical purge.
The practical takeaway
The useful privacy model is precise: active use, logical closure, 24-hour closed-data retention, then eligible physical purge. Follow Free inbox data through active use, logical closure, a 24-hour closed-data retention window and physical purge.
Try MailOnce
Use a temporary inbox for tasks that should stay temporary
Create a short-lived inbox, finish the verification or signup, and do not rely on it as a permanent archive.
Create temporary emailRelated privacy & data guides
Continue with the closest topics in the same data-lifecycle cluster.
How Long Does MailOnce Keep an Expired Free Inbox?
Closed Free inbox data is retained for exactly 24 hours before it becomes eligible for hard purge.
Read guideWhat Happens to Your Data When a MailOnce Inbox Expires?
Expiry closes the address first; physical deletion is a later cleanup step rather than an instant timer event.
Read guideDoes MailOnce Delete Emails After an Inbox Expires?
Messages are part of the inbox-owned data graph removed when an eligible closed Free inbox is physically purged.
Read guide