how to rotate photos received in forwarded email

pictures is received in forwarded message are rotated,  but were not rotated in original mail sent.  Can I rotate the pictures back to where they should be

You can rotate an image you are inserting into a new message by right-click > Image > Rotate.

Some email clients rotate attached images for best fit in received messages, but if the image is embedded in the message, it should not do that. Make sure you insert the image rather than attaching it.