Hi,
We have a client that expects that customer facing error messages are
in the mother tongue of its customers. smtpd_reject_footer and
smtpd_reject_footer_maps don't fully make the job because these
parameters add a footer and don't replace the original text (yes, like
the name of the parameters can suggest !).
Like the special '\c' first character that has a special behavior in
the template, we have added a special '\r' first character that has the
special behavior to replace the original reply text by the template
text.
Below is the patch for this feature (against 3.4.7, I can provide a
patch for latest 3.5 snapshot if you prefer), I hope it will be useful
for someone else.
--- a/src/global/smtp_reply_footer.c
+++ b/src/global/smtp_reply_footer.c
@@ -170,6 +170,10 @@ int smtp_reply_footer(VSTRING *buffer, ssize_t start,
if (cp == saved_template && strncmp(cp, "\\c", 2) == 0) {
/* Handle \c at start of template. */
cp += 2;
+ } else if (cp == saved_template && strncmp(cp, "\\r", 2) == 0) {
+ /* Handle \r at start of template. */
+ vstring_truncate(buffer, dsn_offs + dsn_len + 1);
+ cp += 2;
} else {
/* Append a clone of the SMTP reply code. */
vstring_strcat(buffer, "\r\n");
--- a/proto/postconf.proto
+++ b/proto/postconf.proto
@@ -15356,6 +15356,26 @@ is output literally. </p>
client (192.168.1.248) and server (mail1.example.com).
</pre>
+<p> This another example uses "\r" at the start of the template
+(supported in Postfix 3.5 and later) to replace the reply text
+by the footer text. With earlier Postfix versions, the footer text always
+begins after the reply text, and the "\r" is output literally.
+This feature has a better usage with smtpd_reject_footer_maps. </p>
+
+<pre>
+/etc/postfix/main.cf:
+ smtpd_reject_footer_maps =
regexp:/etc/postfix/override_smtpd_replies.regexp
+
+/etc/postfix/override_smtpd_replies.regexp:
+ /^550 5.1.1 (<[^>]*>):/ \r$1: Adresse destinataire invalide
+</pre>
+
+<p> Server response: </p>
+
+<pre>
+ 550 5.1.1 <f...@example.com>: Adresse destinataire invalide
+</pre>
+
<p> Note: the above text is meant to make it easier to find the
Postfix logfile records for a failed SMTP session. The text itself
Regards
--
Sébastien Michel
Worldline
Mobility & e-Transactional Services
