Image in email signature reply email is replaced with placeholder

Problem

When you reply to, or forward, an email in the Mail app on an Apple iPhone or iPad, images in the HTML email are replaced with file names such as image001.png, image002.png and so on.

Reason

This is by design of the Mail app on Apple iOS devices.

Solution

There is no solution to this problem.

Applies to

Email Signature Manager, all versions