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	<title>mail.log &#8211; SMsoft &#8211; informatica e dintorni</title>
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	<description>consigli settimanali su MacOS, GNU/Linux ed Open Source</description>
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		<title>postfix: Recipient address rejected: Domain not found</title>
		<link>https://blog.smsoft.it/2010/11/30/postfix-recipient-address-rejected-domain-not-found/</link>
					<comments>https://blog.smsoft.it/2010/11/30/postfix-recipient-address-rejected-domain-not-found/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Tue, 30 Nov 2010 13:50:33 +0000</pubDate>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Open Source]]></category>
		<category><![CDATA[4.1.2]]></category>
		<category><![CDATA[450]]></category>
		<category><![CDATA[mail.log]]></category>
		<category><![CDATA[postfix]]></category>
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					<description><![CDATA[Se non riuscite ad inviare posta e tra i log di postfix (mail.log, etc) vedete: Nov 20 14:38:48 mail postfix/smtpd[26826]: NOQUEUE: reject: RCPT from unknown[123.123.123.123]: 450 4.1.2 : Recipient address rejected: Domain not found; from= to= proto=ESMTP helo= molto probabilmente il problema è nel fatto che postfix non riesce ad effettuare la risoluzione DNS del ... <a title="postfix: Recipient address rejected: Domain not found" class="read-more" href="https://blog.smsoft.it/2010/11/30/postfix-recipient-address-rejected-domain-not-found/" aria-label="Per saperne di più su postfix: Recipient address rejected: Domain not found">Leggi tutto</a>]]></description>
										<content:encoded><![CDATA[<p>Se non riuscite ad inviare posta e tra i log di postfix (mail.log, etc) vedete:</p>
<blockquote><p>Nov 20 14:38:48 mail postfix/smtpd[26826]: NOQUEUE: reject: RCPT from unknown[123.123.123.123]: 450 4.1.2 <info@example_dest.ext>: Recipient address rejected: Domain not found; from=<info@example_mitt.ext> to=<info@example_dest.ext> proto=ESMTP helo=<server3400></p></blockquote>
<p>molto probabilmente il problema è nel fatto che postfix non riesce ad effettuare la risoluzione DNS del dominio indicato nel log.</p>
<p>Facendo delle prove ho notato che nel mio caso il problema era proprio quello, ma pur modificando i server DNS nel classico file <strong>/etc/resolv.conf</strong> le cose non cambiavano. Controllando la documentazione mi sono accorto che postfix crea una copia del file resolv.conf in <strong>/var/spool/postfix/etc/</strong>.<br />
Pertanto, il nuovo file <strong>/etc/resolv.conf</strong> va copiato anche in <strong>/var/spool/postfix/etc/resolv.conf</strong></p>
<p>enjoy</p>
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