What i am trying to understand is :
if there is any way or method or command some how.. if we can see bounch back email.
if we sent an email to 1000 customer from firstname.lastname@example.org, arround 200 email will bounch back to us as they are not valid email address
when email bounched back it should come back to email@example.com inbox.
but from exim is there any way to forward thsoe bounch back email from firstname.lastname@example.org to another account so that we can just ahve a look .
* We can check email@example.com infbox. but this inbox does not exist, its a Alias of another inbox , and we cant go and ask those user about bounch back.
so we need to get an option to foward any bounch back email comming to firstname.lastname@example.org email address should be forward to anotehr email account
or some other way ..
bottom line is, we just interested on bounch back email on domain.co.uk
thanks for your advise.