[Fix] Fix issue with empty messages and dkim

Issue: #880

diff --git a/src/libserver/dkim.c b/src/libserver/dkim.c
index d38fe6cb1e4bac10b5c352b261cbccfcd07ec6d4..3c4d7ed36e96805c36d88afffbee6d4e29a1fd94 100644 (file)
--- a/src/libserver/dkim.c
+++ b/src/libserver/dkim.c
@@ -1316,7 +1316,7 @@ rspamd_dkim_skip_empty_lines (const gchar *start, const gchar *end,
        } state = init;
        guint skip = 0;
 
-       while (p >= start + 1) {
+       while (p >= start) {
                switch (state) {
                case init:
                        if (*p == '\r') {