Nomsa Guide
  • 👋About Nomsa
  • Campaign Guide - General
    • 🚀How to send a campaign?
  • Campaign Guide - Email
    • 📧Email Campaigns - Basics
      • Scheduled Sending
      • Bounced Emails and Halted Campaigns
      • Email Statistics
      • Formatting your Message Template
      • Variable Fields
      • Unique URL Link per Recipient
      • Pasting Content from Microsoft Word
      • Manage your Unsubscriptions
      • Understanding Unsubscriptions
    • 🔐Sending Password-Protected Emails
      • Tutorial
  • Campaign Guide - SMS
    • 📲SMS Campaigns - Basics
    • SMS Onboarding Overview
      • How do I send SMS
  • Campaign Guide - Telegram
    • 🤖Telegram Campaigns - Basics
      • Add Telegram Bot Token in Nomsa
      • Instructions for Recipient Onboarding
      • Use the Bot in the Campaign
      • Telegram Formatting
      • Telegram Bot Statistics
  • Api Guide
    • 📖Overview
      • API Response Formats
      • Bearer Authentication
      • Generate your API Key
      • Rotate your API Key
    • 📨Programmatic Email API
      • Custom From Address
      • Tracking Email Status
      • Send Email API
        • From Name and From Address
        • CC and BCC
        • Recipient Blacklist
        • Email Tagging and Classification
        • Email Body
          • Embedding Images
            • Linked Images
            • Content-ID Images
        • Attachments
        • Rate Limit
      • Get Email by ID API
      • List Emails API
    • 📬Programmatic SMS API
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  • Embedding Images
  1. Api Guide
  2. Programmatic Email API
  3. Send Email API

Email Body

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Last updated 1 year ago

The body field in the request body is the email body. API user can provide the email body in either plain text or HTML format.

Size Limit

The body field can accept up to 1MB of data. If the email body exceeds the size limit, the API will return a 400 Bad Request error.

In fact, we recommend that you keep your email body within 100KB for the following reasons:

  • The larger your email body, the longer it takes for your API call to complete.

  • Popular web clients like Gmail will clip emails that are larger than this size.

    • This means users will have to click on a link to view the full email, resulting in a worse user experience.

    • To track open rates, we embed a 1x1 pixel image in the email. If the email is clipped, there is a chance that the image will not be loaded, thus affecting the accuracy of the open rate. For more information, see

    • The exact clipping limit is not known, but it is estimated to be around 102KB.

Embedding Images

For more information on embedding images within the body of your email, go to .

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A clipped message on Gmail