+/* SMTP timeouts (seconds) - SHOULD clauses from RFC-5321 sec. 4.5.3.2. */
+#define TIMEOUT_STARTSMTP 300
+#define TIMEOUT_HELO 300 /* not in RFC-5321, also for EHLO/LHLO */
+#define TIMEOUT_MAIL 300
+#define TIMEOUT_RCPT 300
+#define TIMEOUT_DATA 120
+#define TIMEOUT_DATALINE 180
+#define TIMEOUT_EOM 600
+#define TIMEOUT_DEFAULT 300 /* not in RFC-5321, all other client timeouts */
+