Dunand signed a minor-league contract with the Red Sox on Wednesday.
Dunand cleared waivers Sunday and was outrighted to Triple-A Gwinnett, David O'Brien of The Athletic reports.
Dunand was designated for assignment by Atlanta on Friday.
Atlanta claimed Dunand off waivers from Miami on Wednesday and optioned him to Triple-A Gwinnett.
The Marlins designated Dunand for assignment Sunday, Christina De Nicola of MLB.com reports.
Dunand was optioned to Triple-A Jacksonville on Thursday, Jordan McPherson of the Miami Herald reports.
The Marlins recalled Dunand from Triple-A Jacksonville on Sunday, Christina De Nicola of MLB.com reports.
Dunand was optioned to Triple-A Jacksonville on Monday, Jordan McPherson of the Miami Herald reports.
Dunand went 2-for-4 with a solo home run, double and an additional run during Saturday's 8-0 victory over San Diego.
Dunand's contract was selected by the Marlins on Saturday, Jordan McPherson of the Miami Herald reports.