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authorEric S. Raymond <esr@thyrsus.com>1999-12-23 17:16:14 +0000
committerEric S. Raymond <esr@thyrsus.com>1999-12-23 17:16:14 +0000
commit9620fb04a04d6779da98483f2d9307d5bea3aef5 (patch)
tree91d58b6032745d3c1fd25d7230401d0ac115f78a
parent1e950701e932da3db2e3fba99a9ea28d1a6f438b (diff)
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Better comments.
svn path=/trunk/; revision=2680
-rw-r--r--sink.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/sink.c b/sink.c
index bb9522fb..e3cb4a8f 100644
--- a/sink.c
+++ b/sink.c
@@ -395,12 +395,12 @@ static int handle_smtp_report(struct query *ctl, struct msgblk *msg)
* coming from this address, probably due to an
* anti-spam domain exclusion. Respect this. Don't
* try to ship the message, and don't prevent it from
- * being deleted. Typical values:
+ * being deleted. Default values:
*
- * 501 = exim's old antispam response
- * 550 = exim's new antispam response (temporary)
- * 553 = sendmail 8.8.7's generic REJECT
* 571 = sendmail's "unsolicited email refused"
+ * 550 = exim's new antispam response (temporary)
+ * 501 = exim's old antispam response
+ * 554 = Postfix antispam response.
*
*/
SMTP_rset(ctl->smtp_socket); /* stay on the safe site */
@@ -454,7 +454,10 @@ static int handle_smtp_report(struct query *ctl, struct msgblk *msg)
case 553: /* invalid sending domain */
/*
* These latter days 553 usually means a spammer is trying to
- * cover his tracks.
+ * cover his tracks. We never bouncemail on these, because
+ * (a) the return address is invalid by definition, and
+ * (b) we wouldn't want spammers to get confirmation that
+ * this address is live, anyway.
*/
SMTP_rset(ctl->smtp_socket); /* stay on the safe side */
send_bouncemail(ctl, msg, XMIT_ACCEPT,