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  <title>Spam Filter ISP Forums : Reject message 521</title>
  <link>https://www.logsat.com/spamfilter/forums/</link>
  <description><![CDATA[This is an XML content feed of; Spam Filter ISP Forums : Spam Filter ISP Support : Reject message 521]]></description>
  <pubDate>Tue, 19 May 2026 00:22:48 +0000</pubDate>
  <lastBuildDate>Mon, 31 Mar 2003 00:00:00 +0000</lastBuildDate>
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   <title><![CDATA[Spam Filter ISP Forums]]></title>
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   <title><![CDATA[Reject message 521 : I have version .80 and the cutomized...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=107&amp;title=reject-message-521#107</link>
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    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=2">Guests</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>I have version .80 and the cutomized reject message doesn't seem to be getting sent. A message "521 Server does not accept mail" is sent instead. I had this problem with version.70 and was told .73 would fix the problem. I've been running .73 since late last week, and received this error message today. I just installed .80 today. Is the customized messages fixed?</P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
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   <title><![CDATA[Reject message 521 : Paul,  Please read the other...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=108&amp;title=reject-message-521#108</link>
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    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=8">LogSat</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Paul, <P>Please read the other posting in this thread as well for a sample. Yes, customized messages are supposed to be fixed. Can you please provide us with more details if you are still having problems? <P>Roberto Franceschetti LogSat Software</P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan --><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
   <guid isPermaLink="true">https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=108&amp;title=reject-message-521#108</guid>
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   <title><![CDATA[Reject message 521 : Yeah get similar with the 557...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=109&amp;title=reject-message-521#109</link>
   <description>
    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=2">Guests</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Yeah get similar with the 557 set for keywords. <P>&lt;&lt;&lt; 557 554 5.0.0 Service unavailable <P>It does not send custom message. </P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
   <guid isPermaLink="true">https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=109&amp;title=reject-message-521#109</guid>
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   <title><![CDATA[Reject message 521 : Can you please provide us with...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=110&amp;title=reject-message-521#110</link>
   <description>
    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=8">LogSat</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Can you please provide us with more details? We should have fixed this bug (or at least thought so) with build .80. <P>Following is the transcript of an actual SMTP conversation on our running production version of SpamFilter. The keywords that trigger the reject are "mortgage click here". It correctly sent the cusomized error response. <P>Roberto Franceschetti LogSat Software <P><FONT size=1><FONT color=#0000ff>&gt;&gt;220 mail2.netwide.net Welcome to LogSat's Software SMTP Server v1.0</FONT><BR></FONT><FONT color=#ff0000 size=1>&lt;&lt;HELO CMCTRF1<BR></FONT><FONT color=#0000ff size=1>&gt;&gt;250 Hello CMCTRF1<BR></FONT><FONT color=#ff0000 size=1>&lt;&lt;RSET<BR></FONT><FONT color=#0000ff size=1>&gt;&gt;250 Ok<BR></FONT><FONT color=#ff0000 size=1>&lt;&lt;MAIL FROM:&lt;roberto3@netwide.net&gt;<BR></FONT><FONT color=#0000ff size=1>&gt;&gt;250 roberto3@netwide.net Address Okay<BR></FONT><FONT color=#ff0000 size=1>&lt;&lt;RCPT TO:&lt;roberto4@netwide.net&gt;<BR></FONT><FONT color=#0000ff size=1>&gt;&gt;250 roberto4@netwide.net Address Okay<BR></FONT><FONT color=#ff0000 size=1>&lt;&lt;DATA<BR></FONT><FONT color=#0000ff size=1>&gt;&gt;354 Start mail input; end with &lt;CRLF&gt;.&lt;CRLF&gt;<BR></FONT><FONT color=#ff0000 size=1>&lt;&lt;Forward-Path: &lt;roberto2@netwide.net&gt;<BR>&lt;&lt;From: roberto3@netwide.net<BR>&lt;&lt;To: roberto4@netwide.net<BR>&lt;&lt;Subject: test<BR>&lt;&lt;Date: Mon, 31 Mar 2003 13:24:55 -0500<BR>&lt;&lt;<BR>&lt;&lt;this is a test<BR>&lt;&lt;mortgage click here<BR>&lt;&lt;.<BR></FONT><FONT color=#0000ff size=1>&gt;&gt;557 This email is rejected. It contains keywords rejected by the antispam content filter.<BR></FONT></P>]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
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   <title><![CDATA[Reject message 521 : This is what the returned mail...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=111&amp;title=reject-message-521#111</link>
   <description>
    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=2">Guests</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>This is what the returned mail from RR says: <P>The original message was received at Sun, 30 Mar 2003 22:45:56 -0500 (EST) from 253.42.35.65.cfl.rr.com <P>----- The following addresses had permanent fatal errors ----- &lt;someone@mydomain.com&gt; (reason: 557 ) <P>----- Transcript of session follows ----- ... while talking to mail.mydomain.com.: <P>&gt;&gt;&gt; DATA <P>&lt;&lt;&lt; 557 554 5.0.0 Service unavailable <P>******************************* Just get Service unavailable as reason nothing about keywords. This was a keyword rejection test. PS: changed email address &amp; server to generic names just for this post to avoid spam :-).</P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
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   <title><![CDATA[Reject message 521 : Just tried ourselves with RR and...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=112&amp;title=reject-message-521#112</link>
   <description>
    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=8">LogSat</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Just tried ourselves with RR and received the following. The onlny udifference with your seems to be that on your end the description line after the "557" is not there. Can you email us at support@logsat.com your SpamFilter.ini file so we can ensure it is correct? <P>Roberto <P>The original message was received at Mon, 31 Mar 2003 18:48:05 -0500 (EST) from 48.215.8.67.cfl.rr.com &#091;67.8.215.48&#093; <P>----- The following addresses had permanent fatal errors ----- &lt;roberto3@netwide.net&gt; (reason: 557 This email is rejected. It contains keywords rejected by the antispam content filter.) <P>----- Transcript of session follows ----- ... while talking to mail2.netwide.net.: &gt;&gt;&gt; DATA &lt;&lt;&lt; 557 This email is rejected. It contains keywords rejected by the antispam content filter. 554 5.0.0 Service unavailable </P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
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   <title><![CDATA[Reject message 521 : I uninstalled .80 and then deleted...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=113&amp;title=reject-message-521#113</link>
   <description>
    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=2">Guests</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>I uninstalled .80 and then deleted the program folder for SpamFilter, then I reinstalled fresh. Still get this with a rejected keyword test from rr to mydomain. <P>The original message was received at Mon, 31 Mar 2003 21:06:50 -0500 (EST) from 253.42.35.65.cfl.rr.com &#091;65.35.42.253&#093; <P>----- The following addresses had permanent fatal errors ----- &lt;me@mydomain.com&gt; (reason: 552 Requested mail action aborted: exceeded storage allocation) <P>----- Transcript of session follows ----- ... while talking to mail.mydomain.com.: <P>&gt;&gt;&gt; DATA <P>&lt;&lt;&lt; 552 Requested mail action aborted: exceeded storage allocation 554 5.0.0 Service unavailable <P>? </P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
   <guid isPermaLink="true">https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=113&amp;title=reject-message-521#113</guid>
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   <title><![CDATA[Reject message 521 : Brian,  The correct customized...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=114&amp;title=reject-message-521#114</link>
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    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=8">LogSat</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Brian, <P>The correct customized response should be: <P>557 This email is rejected. It contains keywords rejected by the antispam content filter. <P>Unfortunately I just noticed that this build (.80) went back to a numeric error code of 552, so when you did a clean install your response went back to: <P>552 This email is rejected. It contains keywords rejected by the antispam content filter. <P>If you change the customized line to the correct one things should work. <P>This whole issue arises from the fact that some mail servers (ex. RR in this case) take the numeric code (552) and interpret it in their way, appending their own description to it, ignoring the one sent by SpamFilter. This happens because 552 is used usually to indicate that the user's mailbox is full. An error code of 557 is unused, to the mail server can't append its description, and leaves SpamFilter's alone.</P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
   <guid isPermaLink="true">https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=114&amp;title=reject-message-521#114</guid>
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   <title><![CDATA[Reject message 521 : Just as a test I set keyword reject...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=115&amp;title=reject-message-521#115</link>
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    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=2">Guests</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Just as a test I set keyword reject to 557, still the same results. Does not send custom message. <P>The original message was received at Mon, 31 Mar 2003 21:46:28 -0500 (EST) from 253.42.35.65.cfl.rr.com &#091;65.35.42.253&#093; <P>----- The following addresses had permanent fatal errors ----- &lt;me@mydomain.com&gt; (reason: 557 ) <P>----- Transcript of session follows ----- ... while talking to mail.mydomain.com.: <P>&gt;&gt;&gt; DATA <P>&lt;&lt;&lt; 557 554 5.0.0 Service unavailable <P>This is error returned to sender, maybe the error to sending mail server is different? </P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
   <guid isPermaLink="true">https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=115&amp;title=reject-message-521#115</guid>
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   <title><![CDATA[Reject message 521 : Also when using error code from:...]]></title>
   <link>https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=116&amp;title=reject-message-521#116</link>
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    <![CDATA[<strong>Author:</strong> <a href="https://www.logsat.com/spamfilter/forums/member_profile.asp?PF=2">Guests</a><br /><strong>Subject:</strong> 107<br /><strong>Posted:</strong> 31 March 2003 at 12:00am<br /><br /><P>Also when using error code from: <A HREF="http://www.mailsbroadcast.com/email.bolts&amp;nuts/smtp.return.codes.error.htm" CLASS="ASPForums" TITLE="WARNING: URL created by poster. "><FONT color=#339999><A HREF="http://www.mailsbroadcast.com/email.bolts&nuts/smtp.return.codes.error.htm" CLASS="ASPForums" TITLE="WARNING: URL created by poster. ">http://www.mailsbroadcast.com/email.bolts&nuts/smtp.return.codes.error.htm</A></FONT></A> <P>The original message was received at Mon, 31 Mar 2003 21:27:13 -0500 (EST) from 253.42.35.65.cfl.rr.com &#091;65.35.42.253&#093; <P>----- The following addresses had permanent fatal errors ----- &lt;me@mydomain.com&gt; (reason: 530 ) <P>----- Transcript of session follows ----- ... while talking to mail.mydomain.com.: <P>&gt;&gt;&gt; DATA <P>&lt;&lt;&lt; 530 554 5.5.0 Remote protocol error <P>From above web link: 530 = Access denied <P>Maybe it's just RR CFL ? I guess it doesn't matter as long as it's blocked. I did a clean install using defaults with same results. So, I guess it doesn't really matter, as long as it's blocked. </P><!--webbot BOT="Include" U-Include="../_borders/discSpamFilter_aftr.htm" startspan -->]]>
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   <pubDate>Mon, 31 Mar 2003 00:00:00 +0000</pubDate>
   <guid isPermaLink="true">https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=107&amp;PID=116&amp;title=reject-message-521#116</guid>
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