diff --git a/pica-mail/pica-mail-mta/spam/opendkim.conf b/pica-mail/pica-mail-mta/spam/opendkim.conf
index 2d3cfa78a1c88864669e6acfdeb1820fa706e064..1907e42b6bc5bc6eeab533b65b947e741427713c 100644
--- a/pica-mail/pica-mail-mta/spam/opendkim.conf
+++ b/pica-mail/pica-mail-mta/spam/opendkim.conf
@@ -96,3 +96,4 @@ Background yes
 DNSTimeout 5
 SignatureAlgorithm rsa-sha256
 OversignHeaders From
+RequireSafeKeys false