Melon Post

Stannp is a direct mail marketing platform built to design, schedule, send, automate, and track direct mail at scale. It helps teams print and send direct mail worldwide, including postcards, letters, and self-mailers, while connecting direct mail to modern marketing workflows through more than 1,000 integrations and a custom API. Users can upload a PDF and send letters through virtual printing, create bulk mail campaigns, or set up automated triggered communications for reminders, renewals, newsletters, customer milestones, abandoned carts, lead follow-ups, win-back campaigns, sales, and events. Stannp positions direct mail as a high-impact marketing channel that reaches and engages contacts in a tangible way, combining the visual and tactile nature of print with the tracking, personalization, and automation expected from digital tools. It supports fully personalized follow-up mail, triggered postcards with product images and voucher codes, segmented seasonal campaigns, etc.

Postmarkr is a web application that lets you send physical USPS mail entirely online. Upload a PDF, enter a recipient address, pay, and we handle printing, stamping, and mailing via USPS. Supports letters, certified mail with return receipts, and postcards. Features include real-time USPS tracking, address verification, and a simple pay-per-piece pricing model starting at $1.50 per letter. No subscriptions or minimums required. Built for small businesses, law firms, healthcare practices, property managers, and solo practitioners who need to send official mail without visiting the post office.