2,225 ballots were discarded because there was no signature on the envelope
1,111 were rejected because the voter moved
846 were not accepted because the voter was dead, The state gets monthly updates from the Social Security Administration regarding new Michigan deaths
452 ballots because election officials lacked signatures or the signatures on the envelope did not match state data
More than 6,400 of the 10,600 absentee ballots rejected Aug. 4 were turned away because they arrived after election day, according to new data from Secretary of State Jocelyn Benson's office.
www.detroitnews.com
Sounds like the system works.