http://tech.saigonist.com/taxonomy/term/148/all en http://tech.saigonist.com/b/server/how-read-spf-record-and-allow-google-apps-gmail-send-your-custom-domain <span class="submitted-by">July 23, 2016</span><div class="field_tags"><span class="label label-info"><a href="/tags/spam">spam</a></span> <span class="label label-info"><a href="/tags/dns">dns</a></span> <span class="label label-info"><a href="/tags/spf">spf</a></span> <span class="label label-info"><a href="/tags/email">email</a></span> </div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>An SPF record is a hack. It's a way of using the DNS protocol to say who is allowed to authoritatively send email as a domain name. It does this by using a DNS <code>TXT</code> record (as opposed to an <code>A</code> or <code>MX</code> record). TXT can contain any text. An SPF record is a specially encoded TXT record like this:</p> <pre><code>"v=spf1 ip4:198.51.100.26 -all" </code></pre> <p>The <code>v=spf1</code> indicates that this is an SPF record, considered version 1 of the spf standard.</p> <p>After the version, there are any number of 'directives'. In this example, there's only 1...</p></div></div></div> Sat, 23 Jul 2016 05:28:06 +0000 tomo 94 at http://tech.saigonist.com