Short, specific guides to postage, delivery, and getting paper into the mail. No filler.
Three ways to get a physical letter into the mail without going to the post office, what each costs in 2026, and how to tell which one you actually need.
A single domestic stamp is $1.44 in 2026. Here is the full loaded cost of mailing a letter yourself, and the point where paying a service becomes rational.
Usually not with ordinary lettermail. If you need to prove the recipient received it, you need Registered Mail or a process server — here is how to tell which applies.
When postal mail beats email, what a print-and-mail API request actually looks like, and the four gotchas that bite teams shipping physical mail for the first time.
Canadian addresses have a strict format, and getting it wrong is the most common reason inbound mail goes astray. Here is the format, plus what international postage costs.