Incoming postmark
A company or organization uses an incoming post stamp to mark a document that it has received by letter, making the processing of this document more transparent. As a minimum, the document contains the additional information on the date on which the letter was processed in the inbox . Further information can be added to the incoming post stamp, for example which post office employee processed the document or to which department or to which clerk the document was forwarded.
The legal relevance with authorities
For courts and authorities, the incoming post stamp has the character of a document . It is used to document when a document was received by an authority. This can be used to determine whether a document has been submitted within a certain period of time or not until afterwards.
Many authorities and all courts have night mailboxes for this purpose , where you can see whether a document was received before midnight or after midnight.