The overdue notices generator can split overdues by home library, so if a patron is from library A and has overdues from libraries A, B and C, that person will receive 3 overdue notices ( one for each library's items ). The problem is, the gather print notices cronjob also has the option to separate notices by branch, but it only works by patron home library. So, with this option enabled, all three overdue notices would by sent to library A. What some libraries are expecting is that the notices for A's items goes to A, B's items goes to B, and so on.
The script needs a parameter --split-on-from-address. It would also be convenient with a paramater --email-to-from-address.