I use Gmail as my primary email address. I download my email from Gmail to Apple mail (current version) through POP3.
I have some addresses when they send me an attachment it is not included/attached to the email when it arrives in my inbox - however, I can log into Gmail and select/download the attachment from there without problem. Then, I have some folks that send me an email with attachment, it comes through just fine.
Any suggestions? Is it a Gmail issue? Apple Mail issue? Sender issue?