What Ken notes is something a lot of groups.io users (and users of mobile phones) apparently don't understand. If an image is imbedded in a message, it will be compressed. The only way to send an image and be certain it's not going to be altered by compression, is to make the file a separate attachment. It also amazes me how many mobile phone users don't understand this.
Dano _____________________
KWKloeber noted:
If using a large image and detail is key then attach a file rather than embedding the image.