Ticket notification image size

Another tech asked about this and I didn't have an answer.

When an email comes into the ticket queue, a notification gets sent out; sometimes, if the user has our company logo in their signature, it shows up massive. But if you look at the actual ticket, the logo is "properly" sized.

This is the email notification, zoomed out to 50%

This is the Ticket when viewed from web interface.

Is there any way to make the notifications show images scaled correctly?