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-rw-r--r--proto/regexp_table11
1 files changed, 8 insertions, 3 deletions
diff --git a/proto/regexp_table b/proto/regexp_table
index 1c38472..5e8c15f 100644
--- a/proto/regexp_table
+++ b/proto/regexp_table
@@ -147,9 +147,14 @@
#
# Postfix parses the result as if it is a file in /etc/postfix.
#
-# Note: if a rule contains \fB$\fR, specify \fB$$\fR to keep
-# Postfix from trying to do \fI$name\fR expansion as it
-# evaluates a parameter value.
+# Note: if an inlined rule contains \fB$\fR, specify \fB$$\fR
+# to keep Postfix from trying to do \fI$name\fR expansion as
+# it evaluates a parameter value.
+#
+# Note: when using \fI$name\fR inside an inlined pattern,
+# this will not disable metacharacters such as '.' in the
+# \fI$name\fR expansion. To prevent unexpected matches, use
+# a pcre: table, and specify \eQ\fI$name\fR\eE.
# EXAMPLE SMTPD ACCESS MAP
# # Disallow sender-specified routing. This is a must if you relay mail
# # for other domains.