Using MacBook Pro 13″, Mid 2010 with El Capitan, Ver 10.11.6
In addition to the email address provided, I also use an email address with @me.com.
Just received photos from a sender using Gmail and all the photos were very small in size taken with an iPhone but sent to me at the @me.com email in lieu of the Gmail.com address. Have been told that when emails sent to @me.com with photos attached the photos will be very small compaired to that sent to a Gmail. com address.
Was told that Mac using the @me.com address sends small photo file sizes than, if for example, the photo was emailed using Gmail.