diff -r -u3 qmail-1.03_orig/qmail-smtpd.c qmail-1.03_my/qmail-smtpd.c
--- qmail-1.03_orig/qmail-smtpd.c	Mon Jun 15 06:53:16 1998
+++ qmail-1.03_my/qmail-smtpd.c	Wed Aug  4 00:45:20 1999
@@ -50,7 +50,7 @@
 void straynewline() { out("451 See http://pobox.com/~djb/docs/smtplf.html.\r\n"); flush(); _exit(1); }
 
 void err_bmf() { out("553 sorry, your envelope sender is in my badmailfrom list (#5.7.1)\r\n"); }
-void err_nogateway() { out("553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)\r\n"); }
+void err_nogateway() { out("553 sorry, you must first check your e-mail before you are allowed to send e-mail through this server. (#5.7.1)\r\n"); }
 void err_unimpl() { out("502 unimplemented (#5.5.1)\r\n"); }
 void err_syntax() { out("555 syntax error (#5.5.4)\r\n"); }
 void err_wantmail() { out("503 MAIL first (#5.5.1)\r\n"); }