Cannot email contacts from within contacts app iOS 6

I have seen several historical messages about this problem in these fora and elsewhere but not seen a solution.

I am trying to send a contact to another person and use the share contact button.

I select email and the email dialogue appears.

I select the correct email address and press send and it appears to be sent (swoosh).

However, it does not arrive and does not appear in my sent folder (I use IMAP).

On the other phone that is still using iOS5, the system works properly and can send the details to me.

It works using text rather than email and I am using that at the moment but not everyone wants it as text.

I have not tried other aps but the web is full of people complaining that the in-app email system is not working.

Are others experiencing this?

Does anyone know if there is a solution because I cannot find one.