post
https://api.postgrid.com/print-mail/v1/mailing_lists//jobs
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.