There are four scenarios when your attached files will be deleted.
Deleting a draft
When you attach a file to a draft, this file will be uploaded but is not accessible. When deleting this draft, the secret will be deleted immediately and all attached files will be deleted immediately as well. It's like this draft never existed.
Voiding a shareable secret manually
When you generate a shareable secret with attachments and decide to void it, the secret will be voided immediately and associated attachments are deleted immediately.
Voided due to expiration
When a secret is voided due to exceeding the expiration date, the secret will be voided immediately and all associated attachments are deleted immediately.
Voided by receiver of secret
When a secret was opened by the recipient, the actual secret will be voided once the open limit is reached. The open limit is 1 by default. If you choose another limit, the same logic applies. If you disable the open limit, the expirating date will be the limit. Attached files are not voided immediately. They will be queued to be deleted 3 hours after the secret was voided. This is to make sure the recipient(s) has enough time to download the file(s). But rest assured, the files will be deleted after 3 hours.
Allowed attachments
The following attachments are currently supported:
image/*
audio/*
video/*
image/svg+xml
text/csv
text/xml
text/plain
application/vnd.ms-excel
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/xml
application/pdf
application/msword
application/vnd.openxmlformats-officedocument.wordprocessingml.document
application/vnd.ms-powerpoint
application/vnd.openxmlformats-officedocument.presentationml.presentation
application/vnd.rar
application/zip
application/ogg
application/vnd.apple.pages
application/vnd.apple.keynote
application/vnd.apple.numbers
application/json
application/rtf
application/vnd.oasis.opendocument.text
application/x-7z-compressed
application/rar
application/x-rarIf you need anything specific, let us know.