Service Postal Gmail is a email extension for chrome. it's a free extension , it has 25 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 2086 days ago.
Service Postal - envoyer vos emails par courrier postal facilement à partir de votre messagerie GMAIL
You could download the latest version crx file or older version files and install it.
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You could find more help information from service postal gmail support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of service postal gmail.
You could click to report abuse of service postal gmail.