Image is not showing in mail attachment

I’m sending images in mail attachment, some images which I’ve downloaded from google it showing in email, But some image which I’ve created by Photoshop it is not showing in email attachment. Why does this happen? Please help me.

Thank you…

Try to get the pdf file of that format. Most probably that also have problem.

Try to add host_name in site_config.json.

Sorry, I didn’t explained, that I’m sending newsletter and create email body using Rich Text editor. when I copy image and paste into editor and send email, image sending as broken or content show as while it has to show image. Why this happen?

For the HTML part, you could attach the file as public. And then you can use it via html img tag. But for the Rich Text, I am not sure.