George the way I do it is to create a folder on the desktop eg steam engines, then from photos, highlight the photo or photos wanted, then from the file menu choose export, this gives you a menu to select photo kind - jpeg, file size - large, then press export, this gives you another menu so you can choose the location to export to - select the folder or location you wish to use eg desktop or another folder you create for the job, eg steam engines. Once this is done you have the photos you want to use in a format and size that works for the Mayhem webpages. Then go ahead write your message and select attachments, this gives you a menu to find the folder you placed the photos in, then select the photo you want as an attachment and you should be good to go. Hope this helps, good luck. There may well be other ways and I am happy to learn from others who may do it another way.