Runs a mailing list job. Mailing list jobs allow you to add or remove contacts to your mailing list from mailing list imports or directly with contact IDs. Only one job can be ran at a time and jobs are only able to be ran while the mailing list has a status of "completed".

Once a job as successfully been kicked off, the mailing list will have a status of either creating_contacts or removing_contacts depending on which job was ran. After the job has finished, the mailing list will go back into the completed state where more jobs can be ran. If there are any errors while running a job, the errors field on the mailing list will contain a list of error objects which describe the errors.