Temporary inboxes are active for 3 hours and can be extended up to 24 hours

View receiving limits
Terms of service · updated 26 August 2026

Rules that apply when you use BoxTmp

These terms explain how you may use the temporary inbox and forwarding aliases, which uses we restrict, and how responsibility is shared if delivery fails or access ends.

ItemService boundaryWhat you should do
Temporary inbox3 hours by default, 24 hours maximumDo not use it for bank, medical, or government accounts
Forwarding aliasStays until you pause or delete itSign in only with a mailbox you control
ArchiveUsually kept for up to 30 daysSave anything you need to keep longer
AttachmentsLarge files may travel only with the original messageUse a long-lived mailbox for important files