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/*++
/* NAME
/* indirect 3
/* SUMMARY
/* indirect delivery
/* SYNOPSIS
/* #include "local.h"
/*
/* void deliver_indirect(state)
/* LOCAL_STATE state;
/* char *recipient;
/* DESCRIPTION
/* deliver_indirect() delivers a message via the message
/* forwarding service, with duplicate filtering up to a
/* configurable number of recipients.
/*
/* Arguments:
/* .IP state
/* The attributes that specify the message, sender and more.
/* A table with the results from expanding aliases or lists.
/* CONFIGURATION VARIABLES
/* duplicate_filter_limit, duplicate filter size limit
/* DIAGNOSTICS
/* The result is non-zero when the operation should be tried again.
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*--*/
/* System library. */
#include <sys_defs.h>
#include <unistd.h>
/* Utility library. */
#include <msg.h>
#include <htable.h>
/* Global library. */
#include <mail_params.h>
#include <bounce.h>
#include <defer.h>
#include <been_here.h>
#include <sent.h>
/* Application-specific. */
#include "local.h"
/* deliver_indirect - deliver mail via forwarding service */
int deliver_indirect(LOCAL_STATE state)
{
/*
* Suppress duplicate expansion results. Add some sugar to the name to
* avoid collisions with other duplicate filters. Allow the user to
* specify an upper bound on the size of the duplicate filter, so that we
* can handle huge mailing lists with millions of recipients.
*/
if (msg_verbose)
msg_info("deliver_indirect: %s", state.msg_attr.rcpt.address);
if (been_here(state.dup_filter, "indirect %s",
state.msg_attr.rcpt.address))
return (0);
/*
* Don't forward a trace-only request.
*/
if (DEL_REQ_TRACE_ONLY(state.request->flags)) {
dsb_simple(state.msg_attr.why, "2.0.0", "forwards to %s",
state.msg_attr.rcpt.address);
return (sent(BOUNCE_FLAGS(state.request), SENT_ATTR(state.msg_attr)));
}
/*
* Send the address to the forwarding service. Inherit the delivered
* attribute from the alias or from the .forward file owner.
*/
if (forward_append(state.msg_attr)) {
dsb_simple(state.msg_attr.why, "4.3.0", "unable to forward message");
return (defer_append(BOUNCE_FLAGS(state.request),
BOUNCE_ATTR(state.msg_attr)));
}
return (0);
}
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