Mailgun’s Python tool sends inline images but omits plain text, displaying only HTML. Use this sample code:
request_payload = {
"sender": "Cool User <[email protected]>",
"receiver": "[email protected]",
"subject": "Greetings",
"plainMessage": "Hello, this is a test email.",
"htmlMessage": "<html>Embedded image: <img src='cid:sample_image.png'></html>"
}
How can I resolve this issue?
I encountered a similar problem when using the Mailgun API with inline images. In my case, the issue was related to the naming convention of the parameters. Mailgun expects parameters to follow a certain format in order to automatically create the correct MIME structure. Changing the parameter names from plainMessage and htmlMessage to text and html respectively resolved the issue for me. Additionally, ensuring that the inline image is properly attached with the correct content-ID is crucial. Reviewing the official Mailgun documentation helped identify this nuance and provided a clear direction towards a solution.
I faced a similar issue when my inline images were causing the plain text content to be omitted. After some testing, I discovered that the parameter names needed to adhere strictly to what Mailgun expects. I resolved it by renaming my fields to ‘text’ and ‘html’ rather than using custom names. It appears that Mailgun automatically constructs the email MIME when standard parameter names are used. Additionally, ensuring the proper configuration of content headers for each part helped maintain the integrity of both HTML and plain text versions when viewed on different mail clients.
hey, try verifying that you are using the default field names, sometimes mailgun’s parser gets confused if the naming deviates. the text part might get overlooked unless you stick to their expected format. hope this helps!
After extensive testing and reviewing Mailgun’s official documentation, I discovered that the key to resolving the plain text missing issue was to ensure that the parameter names exactly match what the API expects. In my implementation, using ‘text’ instead of a custom name for the plain text section made a significant difference. Additionally, confirming that the inline image is correctly attached with a matching content-ID was crucial. This approach resulted in both the plain text and HTML content displaying properly. Careful attention to parameter naming and MIME structure configuration is essential to avoid these issues.
In a recent project, the issue of missing plain text content when using inline images with Mailgun turned out to be related to the parameter names and MIME configuration. The resolution was achieved by renaming the custom parameters to what the API expects by default. Using ‘text’ for the plain text portion instead of ‘plainMessage’ and ‘html’ for the HTML content ensured that Mailgun properly composed the emails. Additionally, verifying that inline images were correctly attached with a matching content-ID was critical. Such adjustments led to both parts being rendered as expected across various clients.