Relevant Products: Exclaimer Cloud - Signatures for Office 365 | Exclaimer Cloud - Signatures for G Suite | Signature Manager Exchange Edition | Signature Manager Outlook Edition | Signature Manager Office 365 Edition
You have created your signature template with all the required information and images. Your first initial email looks correct, but in some cases when you reply or forward to the email, the images appear very large and not the required size for the signature template.
Some email clients ignore the Width and Height values set on the image(s) in the signature template and revert the image(s) back to the Native image size.
To prevent this issue from occurring you will need to ensure that the images used within your signature design are created at the required size for the signature template.
As an example, your logo is created at 1000px by 1000px but the signature template requires the logo to be 100px by 100px in size.
Instead of re-sizing the image in the signature template, you should create the image at the required size. This can be using an Image Editing application such as Photoshop or Paint.NET
The image would then need to be uploaded to the signature template again.