Publishers must register in yet another system - just to download a file they're legally required to use.
Request, wait, check again... Your publisher has a dozen better things to do - instead they're watching a spinner. And getting annoyed.
Lists merged without dedup. Seen in the wild: one campaign's suppression file, over 4 GB - garbage that chokes smaller mailers.
Everyone runs multiple overlapping suppression lists - and every duplicate occurrence lands on somebody's invoice.



