https://bugzilla.redhat.com/show_bug.cgi?id=1730804 is present in 9-beta again, 'rpm -V sendmail' reports changed owner/permissions for sm-client.st and databases inside the maildir.

It helps to modify the %files section like it was done in RH 8:
	
%ghost %attr(0640, root,root) %verify(not md5 size mtime) %{maildir}/virtusertable.db
%ghost %attr(0640, root,root) %verify(not md5 size mtime) %{maildir}/access.db
%ghost %attr(0640, root,root) %verify(not md5 size mtime) %{maildir}/domaintable.db
%ghost %attr(0640, root,root) %verify(not md5 size mtime) %{maildir}/mailertable.db
 
%ghost %attr(0660, smmsp, smmsp) %verify(not md5 size mtime) %{spooldir}/clientmqueue/sm-client.st