Whenever I paste my company logo into a message in Outlook 2010, I run into a variety of complications and anomalies.

The dimensions of my original logo image are 315x174 (source image is a PNG file).

I am scaling this image down in Photoshop CS6 to a variety of smaller sizes for testing my Outlook signature (300x166, 250x138, 200x110,150x83 and 100x55 pixels).

300x166 = no distortion. This looks the same as in Photoshop (but far too large to use in my signature).

250x130 = distorted (gets stretched much wider by Outlook when pasting into message body).

200x110 = looks reasonable, but seems to have been scaled to a different size (smaller) by Outlook for no obvious reason.

150x83 = for some reason, this is scaled by Outlook to the exact same size that 200x110 was scaled to. In fact, a large range of similar dimensions are scaled to the exact same image size by Outlook. This is very frustrating. Why is this happening and what can be done to prevent it?

100x55 = when pasting my logo from Photoshop to Outlook with these dimensions all that happens is the cursor jumps forwards about an inch on the screen, leaving a blank space where the image was supposed to go.

Any advice would be much appreciated.