EDIINTDATA AS2 Headers

Hello,

If anyone can help it will be greatly appreciated. What I am trying to accomplish is the following, we are trying to send data to a client via AS2 and change the following AS2Header Content-Disposition: attachment; filename=smime.p7mto read a file name rather than SMIME.p7m. Would anyone know how to go about doing this?

Thank you,
Marlon