<div dir="ltr">Before we moved our corporate email to Google Apps, we switched our spam filtering from in-house to GFI Mail essentials "cloud" version. <div><br>Honestly it worked great, a few minor complaints with the user portal (especially around reporting false positives or missed positives). </div><div><br></div><div>Can appreciate admins like to have "control" over things like spam filtering, but IMO that is time wasted on other projects which could be revenue generating, or adding value for your customers (even if that is internal customers). </div><div><br></div><div>Pro's and Con's either way though. We are a smallish team so did not want to spend time monitoring and caring for a proper spam filtering setup. </div><div><br></div><div>Cheers,</div><div>Ross</div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On 11 March 2015 at 11:37, Terry Sweetser (SkyMesh CTO) <span dir="ltr"><<a href="mailto:terry+AusNOG@skymesh.net.au" target="_blank" onclick="window.open('https://mail.google.com/mail/?view=cm&tf=1&to=terry%2BAusNOG@skymesh.net.au&cc=&bcc=&su=&body=','_blank');return false;">terry+AusNOG@skymesh.net.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Unless you outsource your email
service, I don't recommend outsourcing your spam filtering.<br>
<br>
Your system admins will have some ideas on using greylisting, RBLs
and fail2ban, I recommend seriously entertaining the idea of an
open source solution along those lines.<br>
<br>
Retaining the marked emails may be a service you want to offer,
however that removes the "reject all spam" modus operandi.<br>
</div>
<br>
In my experience, after most of the good open source techniques are
in play, it is the customers being phished for webmail and
submission access that poses the major problem.<br>
<br>
<div>
<pre><a href="http://about.me/terry.sweetser" target="_blank">http://about.me/terry.sweetser</a></pre>
</div>
<br>
<div>
<hr style="color:#62b3ff"><br>
<div style="background-color:#dddddd;font-size:10pt"><b>From:</b>
<a title="<a>ssarkis@unitedip.net.au</a>" href="mailto:%3Ca%3Essarkis@unitedip.net.au%3C/a%3E" target="_blank" onclick="window.open('https://mail.google.com/mail/?view=cm&tf=1&to=%3Ca%3Essarkis@unitedip.net.au%3C/a%3E&cc=&bcc=&su=&body=','_blank');return false;">Sam
Sarkis-uip</a><br>
<b>Sent:</b> Tuesday, March 10, 2015 4:34PM<br>
<b>To:</b> <a title="<a>ausnog@lists.ausnog.net</a>" href="mailto:%3Ca%3Eausnog@lists.ausnog.net%3C/a%3E" target="_blank" onclick="window.open('https://mail.google.com/mail/?view=cm&tf=1&to=%3Ca%3Eausnog@lists.ausnog.net%3C/a%3E&cc=&bcc=&su=&body=','_blank');return false;">Ausnog@lists.ausnog.net</a><br>
<b>Subject:</b> [AusNOG] Spam Filtering</div>
<br>
</div>
<blockquote type="cite"><div><div class="h5">
<div>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hi All,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Just wondering what is everyone doing for
Spam Filtering ? Do you still offer as a service or recommend
your customer to go to a particular provider ?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Are you hosting the filtering internally on
your systems, virtual or physical or Outsourced ?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Do you make your customers release/review
any spam or do you do it for them ?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<br>
<fieldset></fieldset>
<br>
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