This plugin will add an upload field to Elementor Pro Forms.
Please notice: because of Elementor Pro API limitations, the file or files will be arrived in a seperate email.
Check Post SMTP, the best SMTP plugin solution with support for any SMTP service, Email Log, Tools, and built in API support for:
Gmail, SendGrid, Mandrill and Mailgun.
Post SMTP.
wp-content/plugins/
directory of your WordPress installation.