5to1 is an online ad publishing platform enabling media publishers to manage and sell their ad space inventory.
5to1 Email Format:
The most accurate and popular 5to1' email format is {first}.{last} (ex. John.Smith@5to1.com).
5to1 also uses (ex. JSmith@5to1.com ) and {f}{last} (ex. JSmith@5to1.com ) and {f}{last} as email structures. 5to1's uses up to 4 different email patterns.