Re: Rejecting Empty MAIL FROM

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Old 02-16-2005
Postfix List
 
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Default Re: Rejecting Empty MAIL FROM
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Perhaps I have another bug then because people can relay through me
using that address. Any ideas based on my previous config?

=20

* Postfix List <postfix@gcftech.com>:

> I'm kinda new to Postfix and was hoping I could get some help. I have


> a postfix server setup to relay in to my internal exchange box. I get


> a lot of messages with just <> in the Mail From command. I thought I=20

> could block these by using:

=20

The "<>" address is a special adress used by the MAILER-DAEMON to notify
users about the status of mails they sent. You must not block it. Read
the following URL to learn more about it:

=20

<http://www.rfc-ignorant.org/policy-dsn.php>

=20

p@rick

=20

--

SMTP AUTH howto:

<http://postfix.state-of-mind.de/patrick.koetter/smtpauth/>

SMTP AUTH debug utility:

<http://postfix.state-of-mind.de/patrick.koetter/saslfinger/>

=20


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<div class=3DSection1>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>Perhaps I have =
another bug
then because people can relay through me using that address.&nbsp; Any =
ideas based
on my previous config?<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>* Postfix List
&lt;postfix@gcftech.com&gt;:<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&gt; I'm kinda new =
to
Postfix and was hoping I could get some help.&nbsp; I have =
<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&gt; a postfix =
server setup
to relay in to my internal exchange box.&nbsp; I get =
<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&gt; a lot of =
messages with
just &lt;&gt; in the Mail From command.&nbsp; I thought I =
<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&gt; could block =
these by
using:<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>The =
&quot;&lt;&gt;&quot;
address is a special adress used by the MAILER-DAEMON to notify users =
about the
status of mails they sent. You must not block it. Read the following URL =
to
learn more about it:<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&nbsp; &lt;<a
href=3D"http://www.rfc-ignorant.org/policy-dsn.php">http://www.rfc-ignora=
nt.org/policy-dsn.php</a>&gt;<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'>p@rick<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New"'>--<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>SMTP AUTH =
howto:<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&lt;<a
href=3D"http://postfix.state-of-mind.de/patrick.koetter/smtpauth/">http:/=
/postfix.state-of-mind.de/patrick.koetter/smtpauth/</a>&gt;<o:p></o:p></s=
pan></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>SMTP AUTH debug =
utility:<o:p></o:p></span></font></p>

<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"Courier New"><span
style=3D'font-size:10.0pt;font-family:"Courier New"'>&lt;<a
href=3D"http://postfix.state-of-mind.de/patrick.koetter/saslfinger/">http=
://postfix.state-of-mind.de/patrick.koetter/saslfinger/</a>&gt;<o:p></o:p=
></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; <o:p></o:p></span></font></p>

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