Caution: Starting November 1, 2022, all new ONID accounts - including students - will be created with Exchange email and not Gmail.
OSU provides an ONID account for all students, faculty, staff, and university associates. Undergraduate students primarily use OSU Gmail for email, and employees and associates primarily use Exchange email. Graduate students may use Gmail or Exchange depending on their department's preferences. Many undergraduate student employees also use Exchange for work.
A few people are on department mail systems (e.g. Science, Engineering).