mail adapter question

I have a question regarding the mail adapter scenario. Firstly data goes to ECC and some validations are performed and if there are any errors, ECC will provide me with some indicator saying this record has errors.

Now, the same structures are used in the opposite direction and I have to count the number of error records based of that and send that info as an email. If I created a UDF to count the number of error records, how do I put that information in the email ?

Is there anyway, I can capture that info in the mail adapter ?

Any useful links will be appreciated.

-V