Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
We accept documents from postal services that show the postage date, the address to which the package was sent, and official acceptance from the postal service. Proof of postage doesn’t need to be available online and doesn’t need to prove that the package was delivered. Learn more on proof of postage.
