A text message will be sent to every Melbourne Cup jockey warning a repeat of last year's mass whip breaches won't be tolerated as stewards threaten some of the biggest fines and suspensions in Australian racing history.

Only 12 months after a quarter of the riders in the Melbourne Cup flouted Australia's whip rule - including the first three jockeys across the line - a message will be sent to each of the 24 riders on Tuesday morning about their obligations this year.

Racing Victoria stewards fined six jockeys a combined $7700 for using the whip excessively in Australia's most watched race in 2018.

Those penalties included fines for Cross Counter's winning jockey Kerrin McEvoy and placegetters Hugh Bowman (Marmelo) and Michael Walker (A Prince Of Arran).