int keep_malformed = 4*24*60*60; /* 4 days */
uschar *eldap_dn = NULL;
+const uschar *letter_digit_hyphen_dot =
+ US"abcdefghijklmnopqrstuvwxyz"
+ ".-0123456789"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
#ifdef EXPERIMENTAL_ESMTP_LIMITS
uschar *limits_advertise_hosts = US"*";
#endif