Hi Stefano,
if have added following code snippet to
src/java/org/apache/james/transport/mailets/RemoteDelivery.java
method
private boolean deliver(MailImpl mail, Session session) :
---------------------------------------------------------------------------------------
HostAddress outgoingMailServer = (HostAddress) targetServers.next(); //
<--- Existing line
//====== Expires patch start
try {
//
// Expiry Date Indication
// Supported as new RFC 822 header (Expires:).
// @see http://www.faqs.org/rfcs/rfc2156.html
// @see james/logs/mailet-*.log
//
final String EXPIRES_HEADER_RFC2156 = "Expires";
String[] expires = mail.getMessage().getHeader(EXPIRES_HEADER_RFC2156);
if (expires != null && expires.length > 0) {
// Date: Thu, 17 Nov 2005 16:45:12 +0100 (CET)
String value = expires[0].trim();
java.text.DateFormat df = new javax.mail.internet.MailDateFormat();
java.util.Date expire = df.parse(value);
java.util.Date now = new java.util.Date();
if (now.getTime() > expire.getTime()) {
StringBuffer logMessageBuffer =
new StringBuffer(256)
.append("Mail ")
.append(mail.getName())
.append(" to host ")
.append(outgoingMailServer.getHostName())
.append(" at ")
.append(outgoingMailServer.getHost())
.append(" to addresses ")
.append(Arrays.asList(addr))
.append(" is expired since ")
.append(value)
.append(" and is discarded");
log(logMessageBuffer.toString());
return true;
}
}
}
catch (Throwable e) {
e.printStackTrace(); // Ignore Expires: problems
}
//====== Expires patch end
StringBuffer logMessageBuffer = ... // <--- Existing line
---------------------------------------------------
now expired mails are nicely discarded.
This header is well established for 'news' (RFC1036) and
specified in RFC2156 for X.400 -> RCF822(email) gateways as an optional
header.
(In the predecessor document RFC1327 it was called "Expiry-Date:" but
changed later to "Expires:")
This is tested with james 2.2.0 and should work fine
with the current svn code as well.
Is it possible to add this to james as a new feature?
thanks
Marcel
Stefano Bagnara wrote:
Every of our emails has a
Expires: Thu, 15 Dec 2005 21:45:01 +0100 (CET)
[...]
I think the mailet interface is invoked when the mail
arrives to james (and is not expired at this point)
but not when james tries to forward them - true?
The only solution I can find now is to alter the remotedelivery
behaviour to take into account the Expire header (look in the "fail"
method, where the remotedelivery decide wether to keep the mail for
the next retry or to bounce it. It should be a difficult task if you
know java.
Stefano
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