Relevant Products: Exclaimer Cloud - Signatures for Office 365 | Exclaimer Cloud - Signatures for G Suite
When using a signature template that has large elements such as a fixed width table or a large banner, you find that emails received on some mobile devices may be re-sized to 'Fit to Screen'.
This happens because some mobile devices are designed to reduce the content of the entire email to fit onto the screen.
You may see that when opening an email the content jumps from being normal reading size to a much smaller size - this is because the email being sent has an element within it that is larger than the devices screen size, and the mobile device will reduce the whole email to fit on the screen.
Unfortunately, this is a device-specific setting and is not something that can be changed or influenced by the signature design.
We recommend going through the advisory guidelines in order to reduce this is as much as possible. But we cannot fully stop this from happening.