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-rw-r--r--src/src/expand.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/src/expand.c b/src/src/expand.c
index 4a59c0580..6e7d3550f 100644
--- a/src/src/expand.c
+++ b/src/src/expand.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/expand.c,v 1.15 2005/03/08 16:57:28 ph10 Exp $ */
+/* $Cambridge: exim/src/src/expand.c,v 1.16 2005/03/09 08:27:51 tom Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
@@ -1257,6 +1257,7 @@ while (last > first)
#ifdef EXPERIMENTAL_DOMAINKEYS
case vtype_dk_verify:
+ if (dk_verify_block == NULL) return US"";
s = NULL;
if (Ustrcmp(var_table[middle].name, "dk_result") == 0)
s = dk_verify_block->result_string;