Tag: 350gsm

API Upgrades; 1st Class, 350gsm and more…

The Stannp Tech team have been at it again, adding new features for our API users! This article is a guide for anyone using Stannp’s API who wants to automate sending 1st class campaigns, 350gsm card stock, inserts or other custom features. If you would like to know more about using our API please go …