-int recipients_max = 0;
-const pcre *regex_AUTH = NULL;
-const pcre *regex_check_dns_names = NULL;
-const pcre *regex_From = NULL;
-const pcre *regex_IGNOREQUOTA = NULL;
-const pcre *regex_PIPELINING = NULL;
-const pcre *regex_SIZE = NULL;
+int recipients_max = 50000;
+const pcre2_code *regex_AUTH = NULL;
+const pcre2_code *regex_check_dns_names = NULL;
+const pcre2_code *regex_From = NULL;
+const pcre2_code *regex_IGNOREQUOTA = NULL;
+const pcre2_code *regex_PIPELINING = NULL;
+const pcre2_code *regex_SIZE = NULL;