There was a bug in the socket3 API that impacts milter-spamc and possible others that must be applied to ensure correct socket communication. In addition the TLD lists have been updated which is of primary concern for milter-link.
Hello and welcome to SnertSoft 2017. As of this post, SnertSoft «milters» are once again free software. See the software page for download links.
Given the rush in preparing this revamp over the weekend and the switch from commercial to free, some links might be broken. Please contact me by email if there are any problems or questions concerning the software offered here.