aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorEric S. Raymond <esr@thyrsus.com>1996-12-07 00:18:59 +0000
committerEric S. Raymond <esr@thyrsus.com>1996-12-07 00:18:59 +0000
commit835b4bdb57b474df81432696df9c416dee8205c0 (patch)
tree6f0bd5fa2a871694a52ba253805b561c29a2a3a3
parent6d353649bdc438c8b546d86b10e958b9701cc7b2 (diff)
downloadfetchmail-835b4bdb57b474df81432696df9c416dee8205c0.tar.gz
fetchmail-835b4bdb57b474df81432696df9c416dee8205c0.tar.bz2
fetchmail-835b4bdb57b474df81432696df9c416dee8205c0.zip
Document the spam filter feature.
svn path=/trunk/; revision=612
-rw-r--r--fetchmail.man10
1 files changed, 10 insertions, 0 deletions
diff --git a/fetchmail.man b/fetchmail.man
index e2dc2e43..0326624d 100644
--- a/fetchmail.man
+++ b/fetchmail.man
@@ -387,6 +387,16 @@ RFCs. If you ever trip over a server that doesn't, the symptom will
be that messages you have already read on your host will look new to
the server. In this (unlikely) case, only messages you fetched with
\fIfetchmail --keep\fR will be both undeleted and marked old.
+.SH SPAM FILTERING
+Newer versions of
+.I sendmail
+allow administrators to set up `spam filters' that block unsolicited email
+from specified domains. A MAIL FROM line that triggers this feature
+will elicit an SMTP response with an error code of 571. The
+.I fetchmail
+code recognizes this error and discards the message. This is the
+.I only
+circumstance under which fetchmail ever discards mail.
.SH THE RUN CONTROL FILE
The preferred way to set up fetchmail (and the only way if you want to
avoid specifying passwords each time it runs) is to write a