Hello Hugo,<div><br></div><div>You can try looking at your zone files for SPF records and/or TXT containing spf stuff.</div><div><br></div><div>You con implement SPF records as you wish.</div><div><br></div><div>Maybe you can take a look at: <a href="http://www.zytrax.com/books/dns/ch9/spf.html">http://www.zytrax.com/books/dns/ch9/spf.html</a></div>
<div><br clear="all"><div>Saludos / Regards<br>Leonardo Santagostini<br><br><a href="http://ar.linkedin.com/in/santagostini" target="_blank"><img src="http://www.linkedin.com/img/webpromo/btn_profile_bluetxt_80x15_es_ES.png"></a><div>
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<br><br><div class="gmail_quote">2013/3/13 hugo hugoo <span dir="ltr"><<a href="mailto:hugobxl@hotmail.com" target="_blank">hugobxl@hotmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



<div><div dir="ltr"><p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d">Dear all,</span></p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"></span> </p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d">I received the following question and I</span><span style="COLOR:#1f497d"> am not able to aswer as spf records are still mysterious to me.</span></p>

<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d">We are using BIND 9.7.</span></p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"></span> </p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d">Thanks in advance for your answers,</span></p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"></span> </p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d">Hugo,</span></p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"></span> </p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"></span> </p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"></span> </p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d">Does our DNS-server support SPF-type records? Or do we put SPF-info in a TXT-record?<u></u><u></u><u></u></span></p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"><u></u> <u></u></span></p>
<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><u><span style="COLOR:#1f497d">Ref. : <br></span></u><span style="FONT-FAMILY:'Times New Roman','serif';FONT-SIZE:12pt" lang="EN">Early implementations used <a title="TXT record" href="http://en.wikipedia.org/wiki/TXT_record" target="_blank"><font color="#0000ff">TXT records</font></a> for implementation before the new record type was commonly available in DNS software. Use of TXT records for SPF was intended as a transitional mechanism. However, according to the current RFC, <a href="http://tools.ietf.org/html/rfc4408" target="_blank"><font color="#0000ff">RFC 4408</font></a>, section 3.1.1, "An SPF-compliant domain name SHOULD have SPF records of both RR types. A compliant domain name MUST have a record of at least one type," and as such, TXT record use is not deprecated.<sup><a href="http://en.wikipedia.org/wiki/Sender_Policy_Framework#cite_note-2" target="_blank"><font color="#0000ff">[2]</font></a></sup><u></u><u></u></span></p>

<p style="MARGIN:0cm 0cm 0pt" class="MsoNormal"><span style="COLOR:#1f497d"><u></u> <u></u></span></p>                                     </div></div>
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