diff -ur Mix-2.9beta23.orig/Src/rem.c Mix-2.9beta23/Src/rem.c
--- Mix-2.9beta23.orig/Src/rem.c	Tue Nov  7 18:43:26 2000
+++ Mix-2.9beta23/Src/rem.c	Tue Nov  7 18:48:13 2000
@@ -77,7 +77,9 @@
     if (err == -1)
       goto hdrend;
 
-    if ((bufieq(field, "from") || bufieq(field, "sender")) &&
+    /* If the sender email address or IP address matches anything
+       in source.blk, ignore the message. Modified by cmeclax. */
+    if ((bufieq(field, "from") || bufieq(field, "sender") || bufieq(field,"received")) &&
 	doblock(content, block) != 0)
       goto end;