Inline images in e-mail don't display in replies

Inline images in e-mail don't display in replies

Hello. I often embed an inline image (PNG, JPG) as I'm sending an e-mail, but when the recipient replies, the image doesn't display. Instead, there's a long string of digits where the image appeared in my original e-mail. For example:

<1706904152412004_167488908.png>

Is there anything I can do at the start to ensure that an image will continue to display as replies and forwarding take place?

I use Zoho's webmail interface exclusively, mail.zoho.com, no third-party e-mail programs.

Thank you!

David Bernhart