Mail fill

I think you meant "mail fill" as in filling out a form or a document, or perhaps "mail fill" as in filling a mailbox with letters or packages. Here are a few possible meanings:

  1. Filling out a form: "Mail fill" can refer to the process of completing a form or document, such as a tax return, application, or survey, and then mailing it to the relevant authority or organization.
  2. Filling a mailbox: "Mail fill" can also mean filling a mailbox with letters, packages, or other mail items. This might happen when you receive a large number of letters or packages in a short period of time, or when you're expecting a delivery from a online retailer.
  3. Filling a mail slot: In some cases, "mail fill" might refer to filling a mail slot or mail chute with letters or packages. This is often used in offices or buildings where mail is collected and sorted.

If none of these meanings match what you had in mind, please let me know and I'll do my best to help!