I was hoping that someone could help.

We have an email and we want to swop out an image for another image for the whole of outlook.

Does anyone know of a way that we can hide an image and show a completely different image for outlook (which includes webmail 365 etc) I have found a conditional statement "<!--[if mso]>.....<![endif]--> " but this only works for 2007 and above.

Is there anyway we can get something working for the others?