Appleton Township issued the following announcement on Oct 31.
Reminder to Voters that absentee ballots should NOT be mailed anymore. They must be dropped off at the Swift County Auditor's Office no later than 3:00 p.m. on Tuesday, November 3rd.
If you have mailed your ballot, you can track it through this website: http://www.mnvotes.org/track
Original source can be found here.
Source: Appleton Township