email with attachment

When I get emails with attachments, I get two copies of the email, one with attachement, one without. How can I eliminate the one without.

Hi Pierre,
what account does this happen on? Is it a gmail/outlook/other kind of email address? Is it set up as IMAP/POP/Exchange?

Regards,
Olivia

Not exactly sure. It happens on my email account that was initially on Outlook. Don’t think it happens on my gmail emails. Set up on Pop3.
thx