This fixes bug #133618, it should be fixed in dovecot 1.0 so don't apply
this patch to 1.0 or greater

diff -u -r dovecot-0.99.11.orig/configure dovecot-0.99.11/configure
--- dovecot-0.99.11.orig/configure	2004-09-04 05:20:26.000000000 -0400
+++ dovecot-0.99.11/configure	2005-01-06 12:20:30.000000000 -0500
@@ -28933,7 +28933,7 @@
 
 
 
-capability="IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE"
+capability="IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT IDLE CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE"
 
 cat >>confdefs.h <<_ACEOF
 #define CAPABILITY_STRING "$capability"
diff -u -r dovecot-0.99.11.orig/configure.in dovecot-0.99.11/configure.in
--- dovecot-0.99.11.orig/configure.in	2004-09-04 05:20:19.000000000 -0400
+++ dovecot-0.99.11/configure.in	2005-01-06 12:20:09.000000000 -0500
@@ -1141,7 +1148,7 @@
 dnl ** capabilities
 dnl **
 
-capability="IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE"
+capability="IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT IDLE CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE"
 AC_DEFINE_UNQUOTED(CAPABILITY_STRING, "$capability", IMAP capabilities)
 
 CFLAGS="$CFLAGS $EXTRA_CFLAGS"