--- /dev/null
+--- sendmail-8.12.9/sendmail/parseaddr.c.orig Wed Sep 17 18:16:48 2003
++++ sendmail-8.12.9/sendmail/parseaddr.c Wed Sep 17 18:19:58 2003
+@@ -700,7 +700,11 @@
+ addr[MAXNAME] = '\0';
+ returnnull:
+ if (delimptr != NULL)
++ {
++ if (p > addr)
++ p--;
+ *delimptr = p;
++ }
+ CurEnv->e_to = saveto;
+ return NULL;
+ }