file attachment to email not downloadable

Hi guys,

Many thanks for all the help in advance, I’ve this issue where file attachment via contact form 7 in my website send to my email is not downloadable, it just appear something like a word like this below

pro-package-2.jpg

when it’s suppose to be a downloadable jpg file, but it just appear as a name or word only. I’ve got the form tags right which is why i receive the email with the attachment but instead of an attachment file, all i get is word or name like the above.

I thought might be my server issue, but i change the mail setting in my wordpress to directly send to gmail but the issue remains, any advice or help would be greatly appreciate. Many thanks.