The photos in the email were of pupils were dressed in costumes as their favourite book characters for a school event.
In March 2012 the teacher sent Mr C a powerpoint presentation of paintings by a French painter of toddlers and babies, commenting that some of them looked like Mr C's son.
The tribunal found the email from September 2011 was sent without the permission of the parents of the children and in a personal capacity.
The tribunal found the teacher guilty of misconduct and said, "[The teacher] failed to act in a manner to be expected of a registered teacher in sending the September 2011 email, given what he knew about Mr C's attraction to children."
He was also ordered to pay $3565.16 in costs.