Also make sure photos are jpg files, not bmp which are too large for email.
Rename the edited copy to save a copy of the originals in the original size,
too.

"Stewart" wrote:

Recently I took many photographs of my son's wedding and have been trying to
send them via outlook to relatives.
There is a lack of consistency in the delivery, on every occasion I drag and
drop the jpeg photos into the new message and send them.
My daughter received them OK as did my granddaughter but my son did not nor
did his best man.
I tried sending them to myself at my hotmail address and found that if I
restricted the number of photos to less than 5 then they went but if I sent
12 they did not.
Has anyone any idea what can be going on?
Thank you.