free email service
Refers to web-based email services that are free to use, such as Gmail or Yahoo Mail. Wasei-eigo; the English equivalent is 'free email service' or 'webmail'.
wasei-eigo (Japanese-coined English), from free mail
Gmail is one of the typical free email services.
Create a free email account.
Variant spelling with a middle dot; less common but seen in some contexts.
Wasei-eigo from English 'free mail'. It is wasei.