SMSUSA

Postmark SMS

ActiveCampaign-owned transactional email + SMS.

Visit Postmark SMS Install Alintro on Shopify

Custom HTTP setup

Postmark SMS works with Alintro via our custom-HTTP gateway form. Grab your API credentials from postmarkapp.com, then follow the generic setup guide.

Custom HTTP setup guide

Ready to send with Postmark SMS?

Install Alintro on your Shopify store — setup takes 5 minutes, and you can add Postmark SMS(or any gateway) from the Gateways tab.

Install on Shopify

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