diff -r 000000000000 -r 068428edee47 PIC.nullclient
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PIC.nullclient	Fri Oct 19 14:06:22 2007 +0200
@@ -0,0 +1,38 @@
+                Original message:
+                   
+                   To: bill@irs.gov
+                   Hi.
+                   
+qmail-inject    Fill in the complete envelope and header:
+                   
+     |             (envelope) from joe@heaven.af.mil to bill@irs.gov
+     |             From: joe@heaven.af.mil
+     |             To: bill@irs.gov
+     |             
+     |             Hi.
+     V             
+                   
+qmail-queue     Store message safely on disk.
+                Trigger qmail-send.
+     |             
+     V             
+                   
+qmail-send      Look at envelope recipient, bill@irs.gov.
+     |          Is irs.gov in locals? No.
+     |          Is bill@irs.gov in virtualdomains? No.
+     |          Is irs.gov in virtualdomains? No.
+     |          Is .gov in virtualdomains? No.
+     |          Deliver remotely to bill@irs.gov.
+     V          
+                   
+qmail-rspawn    Run qmail-remote.
+
+     |             
+     V             
+
+qmail-remote    Look at host name, irs.gov.
+                Is irs.gov listed in smtproutes? Yes: ":bigbang.af.mil".
+                Look up DNS A for bigbang.af.mil and connect by SMTP:
+                   
+                   MAIL FROM:<joe@heaven.af.mil>
+                   RCPT TO:<bill@irs.gov>