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![Airmail shipping with USPS First Class Mail [Forwardo]](http://www.forwardo.com/img/fcmi-envs.jpg "Airmail shipping with USPS First Class Mail [Forwardo]")
Airmail shipping with USPS First Class Mail [Forwardo]
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USPS returned all 50 of my first class mail parcels?? I bought the shipping labels through Shopify. Please help : r/USPS
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