Body of email missing in sent items

Body of email missing in sent items

I have sent several emails today but recipients have advised me there is nothing in the body of the email. 

I sent some test emails to another email address of mine and I can indeed see there is no actual email. 

Strangely, in the inbox view of my other email address I can see a snippet of the email but when I click on the email to read it in full, no body. 

Anyone else have this issue or can provide a solution? 

Thank you.