Postedly
Postedly turns finished documents and designs into a fax, mailed letter, certified letter, postcard or selected print product for a recipient in the United States. Upload a file in the browser or connect a compatible AI assistant through its API and MCP integration. Review the final proof, recipient and exact price before approving payment in a private browser checkout. Uploading a document or requesting a quote does not send or charge. Pay per order, with fax starting at $4.99 before applicable tax. Track payment and provider-confirmed fulfillment status separately. Postedly is operated by Soxoa LLC.
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Stannp
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.
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DocuSend
4.9 out of 5 stars
(12 Ratings)
Remotely send your documents directly to the United States Postal Service through our cloud-based mailroom. DocuSend works with any accounting, billing, or CRM software that produces PDF documents containing a valid mailing address. Users can upload directly, or developers can integrate our REST API to offer a "Send Mail" button in their software, either as a reseller or for internal direct connectivity. There are enormous economic advantages for any business or organization that needs to safely print and mail documents on demand. We also offer an automated email service called DocuLink that lets you know which users open the document links sent and makes it easy to follow up with a hard copy if needed. We are sure that one of our features will improve your mailing experience: DocuSend, DocuLink or the Print-To-Mail Rest API will streamline the manual and time-consuming print, mail and email process.
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PostKnock
PostKnock is a marketing platform for small service businesses — dental practices, HVAC contractors, optometrists, chiropractors, veterinary clinics, and home services. It combines direct-mail postcards with automated phone follow-up in a single workflow.
Choose a pre-built industry playbook (dental recall, HVAC seasonal, lapsed-patient re-engagement, etc.), upload a contact list, and PostKnock handles printing, USPS First-Class mailing, QR-code tracking, and post-delivery call queues with pre-loaded scripts for your front desk.
Multi-wave campaigns sequence postcards and calls over weeks. CSV import auto-maps fields. Real-time tracking shows delivery, scans, completed calls, and revenue attribution.
Free plan available — only pay for postcards sent. Pro from $99/month unlocks multi-wave sequencing, the full call queue, and analytics. No contracts. 30-day money-back guarantee.
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