First, install the package: npm install postmark
const Postmark = require("postmark");
// Initialize with your Server Token
const client = new Postmark.ServerClient("YOUR_API_TOKEN");
// Send the email
client.sendEmail(
"From": "sender@example.com",
"To": "recipient@example.com",
"Subject": "Purchase Receipt",
"HtmlBody": "<b>Thank you for your purchase!</b>",
"TextBody": "Thank you for your purchase!",
"MessageStream": "outbound"
).then(response =>
console.log("Email sent! ID: " + response.MessageID);
).catch(error =>
console.error("Error sending email: " + error.message);
);
curl "https://api.postmarkapp.com/email" \
-X POST \
-H "Accept: application/json" \
-H "Content-Type: application/json" \
-H "X-Postmark-Server-Token: YOUR_API_TOKEN" \
-d '
"From": "sender@example.com",
"To": "recipient@example.com",
"Subject": "Hello from Postmark",
"HtmlBody": "<strong>Hello</strong> dear Postmark user.",
"TextBody": "Hello dear Postmark user.",
"MessageStream": "outbound"
'
If you need a clear, legally valid postmark, follow these five steps:
The next time you drop a bill in the mailbox or send a thank-you card, pause for a second. Look at that little circle in the corner. The postmark is a silent witness to history—a tiny, dated anchor that says, “I was here, on this day, from this place.”
Whether you are trying to beat the tax deadline, impress a philatelist, or simply make your direct mail stand out, never underestimate the humble postmark. In a world of ephemeral pixels, it remains permanent proof.
Keywords used: postmark, USPS postmark, hand-cancel postmark, legal postmark date, philately postmark, direct mail postmark.
To prepare full content for a message or template using , you need to define three primary components: the 1. Subject Line
The subject line should be clear and concise to improve open rates. You can also use Mustachio variables subject product_name to make it dynamic at the time of sending. Best Practice:
Keep it between 50–100 characters and avoid "spammy" language. 2. Email Body Content
A professional email typically includes a greeting, the main purpose of the message, and a clear call to action. Email API | Postmark Developer Documentation
A postmark is an official postal marking applied by the United States Postal Service (USPS) to a mailpiece, such as a letter or package
. It serves as a record of when and where the item was accepted into the mail stream and also functions to "cancel" postage stamps so they cannot be reused Key Components of a Postmark Modern postmarks typically include:
The name of the processing facility or the city, state, and ZIP code of the retail unit that applied the marking
The date the mailpiece was first processed at an automated facility or accepted at a retail counter Cancellation Bars:
Ink lines or bars that strike the postage stamp to prevent reuse Types of Postmarks Automated (Machine) Postmarks:
Applied by high-speed machines at regional processing facilities. These are the most common but may show a date later than the actual day of mailing if the item wasn't processed immediately Manual (Local) Handstamps:
Applied by a postal clerk at a retail counter upon request. This ensures the postmark reflects the exact date of mailing, which is critical for legal or tax deadlines Postage Validation Imprint (PVI) Labels:
These are the printed labels you get when buying postage at a post office counter. They are considered the functional equivalent of a postmark Pictorial and Slogan Postmarks:
Special designs used to commemorate events or promote public awareness Legal and Practical Importance Postmarks and Postal Possession - Federal Register
To prepare content related to "postmark," let's consider what postmark generally refers to and craft information around it. A postmark is a postal marking on an envelope, package, or postcard indicating the date and time that the item was processed by a postal service. It can also refer to a mark or impression made by a postmarking machine. Here are several types of content ideas related to postmark:
08/29/2012 @ 3:42 pm
I’m actually looking forward to checking this one out. Serbian Film would have been better if not for all the hype surrounding the film. Salo ranks up there with this other film Sweet Movie as beautiful repulsing films I’ll never watch again.
I’m equally repulsed and intrigued by the concept of this film though.