From what I understand they have to have a postmark on or before Nov. 3rd.
A ScamDem tried to bring in US Post Office mistakes tonight
There’s the problem - timing. Perhaps the rules should be changed in all states: if you want to use a mail-in ballot, it should be returned one week before the general election. If you cannot get it postmarked by that date, you must vote in person on Election Day and bring the ballot with you.