<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Is 451 code used mailservers for greylisting first reject]]></title><description><![CDATA[<p dir="auto">This topic was carried over (title only) from the original hMailServer community forum, where it was started on 2013-01-16 in <em>General discussions</em>. The original discussion is at <a href="https://www.hmailserver.com/forum/viewtopic.php?t=24123" rel="nofollow ugc">hmailserver.com (topic 24123)</a> with an <a href="https://web.archive.org/web/20200917190913/http://www.hmailserver.com/forum/viewforum.php?f=7&amp;start=6700" rel="nofollow ugc">archived copy</a>. If it is still relevant to you, feel free to continue it here.</p>
]]></description><link>https://www.hmailserver.co.uk/topic/18866/is-451-code-used-mailservers-for-greylisting-first-reject</link><generator>RSS for Node</generator><lastBuildDate>Tue, 22 Sep 2026 16:10:43 GMT</lastBuildDate><atom:link href="https://www.hmailserver.co.uk/topic/18866.rss" rel="self" type="application/rss+xml"/><pubDate>Wed, 16 Jan 2013 14:34:00 GMT</pubDate><ttl>60</ttl></channel></rss>