diff --git a/testing/tests/regression-suite/245-Moz-POST-FB.result b/testing/tests/regression-suite/245-Moz-POST-FB.result
new file mode 100644
index 00000000..ec9a8396
--- /dev/null
+++ b/testing/tests/regression-suite/245-Moz-POST-FB.result
@@ -0,0 +1,17 @@
+HTTP/1.1 200 OK
+Date: Dow, 01 Jan 2000 00:00:00 GMT
+DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
+ETag: "6688f740e99f71251b662dc5b901c1b6"
+Content-Length: 314
+Content-Type: text/xml; charset="utf-8"
+
+<?xml version="1.0" encoding="utf-8" ?>
+<schedule-response xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+ <C:response>
+  <C:recipient>
+   <href>mailto:user3@example.net</href>
+  </C:recipient>
+  <C:request-status>3.8;No authority</C:request-status>
+  <C:calendar-data/>
+ </C:response>
+</schedule-response>
diff --git a/testing/tests/regression-suite/245-Moz-POST-FB.test b/testing/tests/regression-suite/245-Moz-POST-FB.test
new file mode 100644
index 00000000..4d21ee24
--- /dev/null
+++ b/testing/tests/regression-suite/245-Moz-POST-FB.test
@@ -0,0 +1,35 @@
+#
+# POST to scheduling outbox for freebusy query on user2
+#
+TYPE=POST
+URL=http://mycaldav/caldav.php/user1/.out/
+HEADER=User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.18pre) Gecko/20080917 Sunbird/0.9
+HEADER=Accept: text/xml
+HEADER=Accept-Language: en-us,en;q=0.5
+HEADER=Accept-Encoding: gzip,deflate
+HEADER=Accept-Charset: utf-8,*;q=0.1
+HEADER=Content-Type: text/calendar; charset=utf-8
+HEADER=Originator: mailto:user1@example.net
+HEADER=Recipient: mailto:user3@example.net
+
+HEAD
+
+REPLACE=/^DTSTAMP:\d{4}[01]\d[0123]\dT[012]\d[0-5]\d[0-6]\dZ\r?$/DTSTAMP:yyyymmddThhmmssZ/
+
+BEGINDATA
+BEGIN:VCALENDAR
+PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
+VERSION:2.0
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+DTSTAMP:20081022T062945Z
+ORGANIZER:mailto:user1@example.net
+DTSTART:20081020T110000Z
+DTEND:20081105T110000Z
+UID:c5bd82ea-cd89-4f58-8d31-336f47e44f97
+ATTENDEE;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL:
+ mailto:user3@example.net
+END:VFREEBUSY
+END:VCALENDAR
+ENDDATA
+
diff --git a/testing/tests/regression-suite/246-Moz-POST-FB.result b/testing/tests/regression-suite/246-Moz-POST-FB.result
new file mode 100644
index 00000000..483803fb
--- /dev/null
+++ b/testing/tests/regression-suite/246-Moz-POST-FB.result
@@ -0,0 +1,17 @@
+HTTP/1.1 200 OK
+Date: Dow, 01 Jan 2000 00:00:00 GMT
+DAV: 1, 2, 3, access-control, calendar-access, calendar-schedule
+ETag: "0a963d6aa5a4ae8d91f2f6cebe27ad96"
+Content-Length: 331
+Content-Type: text/xml; charset="utf-8"
+
+<?xml version="1.0" encoding="utf-8" ?>
+<schedule-response xmlns="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+ <C:response>
+  <C:recipient>
+   <href>mailto:ultrabogosity@example.net</href>
+  </C:recipient>
+  <C:request-status>3.7;Invalid Calendar User</C:request-status>
+  <C:calendar-data/>
+ </C:response>
+</schedule-response>
diff --git a/testing/tests/regression-suite/246-Moz-POST-FB.test b/testing/tests/regression-suite/246-Moz-POST-FB.test
new file mode 100644
index 00000000..d4ba91ae
--- /dev/null
+++ b/testing/tests/regression-suite/246-Moz-POST-FB.test
@@ -0,0 +1,35 @@
+#
+# POST to scheduling outbox for freebusy query on user2
+#
+TYPE=POST
+URL=http://mycaldav/caldav.php/user1/.out/
+HEADER=User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.18pre) Gecko/20080917 Sunbird/0.9
+HEADER=Accept: text/xml
+HEADER=Accept-Language: en-us,en;q=0.5
+HEADER=Accept-Encoding: gzip,deflate
+HEADER=Accept-Charset: utf-8,*;q=0.1
+HEADER=Content-Type: text/calendar; charset=utf-8
+HEADER=Originator: mailto:user1@example.net
+HEADER=Recipient: mailto:ultrabogosity@example.net
+
+HEAD
+
+REPLACE=/^DTSTAMP:\d{4}[01]\d[0123]\dT[012]\d[0-5]\d[0-6]\dZ\r?$/DTSTAMP:yyyymmddThhmmssZ/
+
+BEGINDATA
+BEGIN:VCALENDAR
+PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
+VERSION:2.0
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+DTSTAMP:20081022T062945Z
+ORGANIZER:mailto:user1@example.net
+DTSTART:20081020T110000Z
+DTEND:20081105T110000Z
+UID:c5bd82ea-cd89-4f58-8d31-336f47e44f97
+ATTENDEE;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;CUTYPE=INDIVIDUAL:
+ mailto:ultrabogosity@example.net
+END:VFREEBUSY
+END:VCALENDAR
+ENDDATA
+