diff -urN qmail-1.03-08/qmail-pop3d.c qmail-1.03/qmail-pop3d.c
--- qmail-1.03-08/qmail-pop3d.c	2003-06-24 09:48:42.000000000 +0200
+++ qmail-1.03/qmail-pop3d.c	2003-06-24 09:49:11.000000000 +0200
@@ -277,8 +277,21 @@
   close(fd);
 }
 
+void pop3_capa(arg) char *arg;
+{
+  puts("+OK Capability list follows\r\n"
+       "TOP\r\n"
+       "UIDL\r\n"
+       "LAST\r\n"
+       "USER\r\n"
+       "APOP\r\n"
+       ".\r\n");
+  flush();
+}
+
 struct commands pop3commands[] = {
   { "quit", pop3_quit, 0 }
+, { "capa", pop3_capa, 0 }
 , { "stat", pop3_stat, 0 }
 , { "list", pop3_list, 0 }
 , { "uidl", pop3_uidl, 0 }
diff -urN qmail-1.03-08/qmail-popup.c qmail-1.03/qmail-popup.c
--- qmail-1.03-08/qmail-popup.c	1998-06-15 12:53:16.000000000 +0200
+++ qmail-1.03/qmail-popup.c	2003-06-24 09:49:15.000000000 +0200
@@ -155,11 +155,23 @@
   *space++ = 0;
   doanddie(arg,space - arg,space);
 }
+void pop3_capa(arg) char *arg;
+{
+  puts("+OK Capability list follows\r\n"
+       "TOP\r\n"
+       "UIDL\r\n"
+       "LAST\r\n"
+       "USER\r\n"
+       "APOP\r\n"
+       ".\r\n");
+  flush();
+}
 
 struct commands pop3commands[] = {
   { "user", pop3_user, 0 }
 , { "pass", pop3_pass, 0 }
 , { "apop", pop3_apop, 0 }
+, { "capa", pop3_capa, 0 }
 , { "quit", pop3_quit, 0 }
 , { "noop", okay, 0 }
 , { 0, err_authoriz, 0 }