Issue with Inline Images in Email Reply via Zoho Desk API

Issue with Inline Images in Email Reply via Zoho Desk API

Hi,

I am attempting to send inline images in an email reply using the Zoho Desk API, but the images are not being displayed inline for the recipient.

I have followed this documentation:


Steps I followed:
1. Upload each image via https://desk.zoho.in/api/v1/uploads to obtain a unique ID (e.g., id=12345).
2. Reference this ID in the reply HTML content as an inline image: <img src='cid:12345'>
3. Send the reply via https://desk.zoho.in/api/v1/sendReply, including the attachmentIds in the payload.

The reply is delivered, but the image appears as a regular attachment instead of inline.


No solution from Zoho support:
Before this I had contacted your support team at support@zohodesk.com and provided them with all the details and .eml file.
They suggested using the file name instead of the ID (e.g., <img src='cid:file_name.png'>), but this did not work and also seems unreliable since file names can be duplicated. Now I am getting no response from your support team.
(Refer subject: Re:[## 122773707 ##] Issue with Inline Attachments via Zoho Desk API)


Could you please advise on the correct approach to ensure images are received inline?


Thank you