Obsoleted by Real Time Cyrus Integration Version 2
The document presents a few methods making sendmail check in real time presence of cyrus mailboxes.
It uses fstat map (requires patching sendmail sources) to allow sendmail check in file system if directory holding given cyrus mailbox is present.
WARNING: patch for sendmail 8.12 returns "no match" (no such mailbox) for all queries when cyrus is shutdown [I have not checked sendmail 8.12 behavoiur so far].
It uses socket map protocol for communication between sendmail and cyrus. It requires cyrus-2.3.3 and sendmail-8.13 (or patched sendmail-8.12).
Both above mentioned methods are not milter-sender friendly unlike Real Time Cyrus Integration Version 2.