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<body class='hmmessage'><div dir='ltr'>Bonjour à tous,<br><br>Un petit coup de pouce serait le bienvenu par rapport à un problème que je rencontre actuellement : j'ai beau appliquer les divers howto trouvés sur Internet, et beau avoir tourné les man pages dans tous les sens, je n'arrive pas à utiliser la directive suivant :<br><dl><dt><b><a name="fallback_relay">fallback_relay</a>
(default: empty)</b></dt><dd>
Optional list of relay hosts for SMTP destinations that can't be
found or that are unreachable. With Postfix 2.3 this parameter
is renamed to <a href="http://www.postfix.org/postconf.5.html#smtp_fallback_relay">smtp_fallback_relay</a>. <BR>
By default, mail is returned to the sender when a destination is
not found, and delivery is deferred when a destination is unreachable.
<BR>
The fallback relays must be SMTP destinations. Specify a domain,
host, host:port, [host]:port, [address] or [address]:port; the form
[host] turns off MX lookups. If you specify multiple SMTP
destinations, Postfix will try them in the specified order. <BR>
Note: before Postfix 2.2, do not use the <a href="http://www.postfix.org/postconf.5.html#fallback_relay">fallback_relay</a> feature
when relaying mail
for a backup or primary MX domain. Mail would loop between the
Postfix MX host and the <a href="http://www.postfix.org/postconf.5.html#fallback_relay">fallback_relay</a> host when the final destination
is unavailable. <BR>
<ul><li> In <a href="http://www.postfix.org/postconf.5.html">main.cf</a> specify "<a href="http://www.postfix.org/postconf.5.html#relay_transport">relay_transport</a> = relay",
</li><li> In <a href="http://www.postfix.org/master.5.html">master.cf</a> specify "-o <a href="http://www.postfix.org/postconf.5.html#fallback_relay">fallback_relay</a> =" (i.e., empty) at
the end of the <tt>relay</tt> entry.
</li><li> In transport maps, specify "relay:<i>nexthop...</i>"
as the right-hand side for backup or primary MX domain entries.
</li></ul>
Postfix version 2.2 and later will not use the <a href="http://www.postfix.org/postconf.5.html#fallback_relay">fallback_relay</a> feature
for destinations that it is MX host for.
<BR></dd></dl>La configuration ne semble pas prise en compte au niveau de Postfix, et le mail est systématiquement rejeté, sans être passé au relais suivant (serveur Exchange sur lequel les boites aux lettres sont cette fois définies ...).<BR><br><BR>Auriez-vous une idée ?<BR><br><BR>Merci d'avance, bonne fin de matinée,<BR>Jean<br><BR><br> </div></body>
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