postscript shopify collection greylock yckumparaktechcrunch, Greg Kumparak / TechCrunch:Postscript, which helps Shopify retailers keep in contact with clients by way of SMS, declares $35M Sequence B led by Greylock, with participation from YC and othersPostscript helps Shopify shops keep in contact with clients by way of SMS, with a deal with retaining all the things opt-in, legally compliant, and spam free
