Jun 1, 2026 · 4 min read
How to mail a letter without owning a printer
Skip the print shop and the post office. Here's the modern way to send a physical letter — in 60 seconds, from anywhere.
Coming soon →04Blog
Mail, made modern.
Guides, tutorials, and stories about sending real letters in a digital world.
May 18, 2026 · 6 min read
The best way to send a demand letter in 2026
Demand letters still get results — but only if they look professional and arrive on time. Here's what to include and how to send one online.
Coming soon →May 2, 2026 · 5 min read
USPS First Class vs Certified Mail: which one do you actually need?
Tracking, signatures, delivery times, and cost — a plain-English breakdown of what USPS services are worth paying for.
Coming soon →Apr 15, 2026 · 3 min read
Why address verification matters (and how PieMail handles it)
Half of returned mail comes from bad addresses. Here's how USPS's CASS-certified verification catches typos before they cost you.
Coming soon →Mar 28, 2026 · 5 min read
Sending US letters from overseas: a step-by-step guide
Living abroad but need to mail something inside the United States? PieMail lets you do it without a US printer, US post office, or US stamps.
Coming soon →Mar 10, 2026 · 3 min read
Thank-you notes that actually get read
A handwritten-style thank-you note still beats an email — every time. Here's how to send one without finding a pen.
Coming soon →