<div dir="ltr">Hi Colin,<div><br></div><div>Thanks for that; I'd already checked that we have /etc/hosts entries for the FQDN, and its shortened variety (so, <a href="http://foo.bar.com">foo.bar.com</a>, and foo, respectively). Forgot to mention that.</div><div><br></div><div>Andrew</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 8, 2016 at 7:57 AM, Colin Law <span dir="ltr"><<a href="mailto:clanlaw@gmail.com" target="_blank">clanlaw@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 7 August 2016 at 22:12, Andrew Langhorn <<a href="mailto:andrew@ajlanghorn.com">andrew@ajlanghorn.com</a>> wrote:<br>
> Hi<br>
><br>
> I run Ubuntu 14.04 with Postfix installed which uses Amazon SES as a mail<br>
> relay. I'm trying to work out why, when a fresh Amazon EC2 instance is<br>
> provisioned, I get mail with the subject "*** Security information for<br>
> <hostname> ***".<br>
><br>
> I'd like to know:<br>
><br>
> - what causes it,<br>
> - what use it is to me, and<br>
> - how to stop it in the most elegant and efficient manner<br>
><br>
> A quick Google suggests it might be an outdated version of the Sudo package,<br>
> but I'm running the latest available from the Canonical-supported mirrors in<br>
> the eu-west-1 region.<br>
<br>
</span>Googling for<br>
"Security information for"<br>
led me to this<br>
<a href="http://superuser.com/questions/284820/what-generates-this-message-security-information-for-hostname" rel="noreferrer" target="_blank">http://superuser.com/<wbr>questions/284820/what-<wbr>generates-this-message-<wbr>security-information-for-<wbr>hostname</a><br>
which could be relevant<br>
<span class="HOEnZb"><font color="#888888"><br>
Colin<br>
<br>
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