That is strange. Out of the box it Forwards attachmens included in original message. Tools->Options->Composition does not have explicit options for that. Tools->Account Settings does not have explicit options for that. Either yours is broken or something else is wrong. When you mean attachments you are talking about a file name that shows below the message as: 1 attachment: filex.zip (see image1 attached) Or an image included in the message body? (see image2 attached) As a last resource this (see image3 attached) can be checked. But I don't recommend changing defaults (mines are defaults)