Comment 1 for bug 1735645

Do the two lists actually exist?

If this is cPanel, the list in regular_include_lists needs to be the cPanel list name, e.g. <email address hidden>.

Similarly, if this is some other modified Mailman where the list's internal name is not the same as the local part of the list posting address, the local part of the regular_include_lists entry needs to be the list's internal name.