Praise be to Allaah.
Images of animate beings that have been drawn by hand or
three-dimensional images are haraam and are included in the texts which
contain a warning of punishment for the image makers.
For more details on that please see the answers to questions
With regard to images made by machines, which are called
photographic images, there is a difference of opinion among the scholars
concerning them. What seems to us to be the correct ruling is that they come
under the ruling on images that is mentioned above.
For more information please see the answers to questions no.
From the above, it may be known that it is not permissible to
put the image of a child or any other animate being in e-mail or on chat
rooms and the like. The prohibition is even more emphatic if the picture is
of a female or if the picture is of a handsome man who is aiming to put it
there to attract girls and women. Such actions are not permissible even
according to those who allow photographs, because this usage causes obvious
evil and corruption.
And Allah knows best.