The county web site lets you track your early ballot though the system -
https://www.recorder.pima.gov/VoterStats/BallotInfo
For me -
2018 GENERAL ELECTION Your ballot request was processed on 10/12/2018
2018 GENERAL ELECTION Your ballot was mailed on 10/16/2018
2018 GENERAL ELECTION Your ballot was returned to our office on 11/07/2018 and it has been referred for signature verification.
2018 GENERAL ELECTION Your signature was verified on 11/07/2018
2018 GENERAL ELECTION Your ballot has been transferred to the Elections Department to be counted in batch U1, on 11/07/2018
Thanks for providing that info on your ballot info. I was able to look mine up because of it. I’m in Maricopa County. I dropped my ballot off on election day and it says my vote was signature verified and counted.