I sent an email to my cousing and later on checking my sent mail - I saw that another person had been included in the mail.

This is not good - as the email to my cousin was private.

After doing some reasearch - I saw that my emails had been grouped together if involving the dame subject. I disable this and now

all is ok. But - when the emails were grouped together - did the other recipient see my email, as well as my cousin?

Thank you :)