When it comes to company signatures you can be forced to use their approved format which I understand. Outside of that, or where you have choice, are there considerations as far as horizontally or vertically heavy email signatures? Consider the following examples made using dummy data from fakenamegenerator.com and freelogodesign.org
Vertically focused example
Horizontally focused example
Assuming all of the content you see in both examples was required would either have disadvantages? These would be used internally on Outlook but be communicate to external folks. The horizontal example is based on a table.
I feel the vertical one would have a better chance of always being rendered the same regardless of the client / device. Whereas the the horizontal one might be forcibly wrapped or scaled to fit on smaller screens. The horizontal one could look better on wider screens and takes up less horizontal space to as to not drown a simple correspondence with a signature.