<div dir="ltr">Also look into using SMTP auth and fail2ban.</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Apr 14, 2013 at 12:03 PM, Martin Hepworth <span dir="ltr"><<a href="mailto:maxsec@gmail.com" target="_blank">maxsec@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Also reject non valid email addresses on the incoming mta<div class="HOEnZb"><div class="h5"><span></span><br><br>On Sunday, 14 April 2013, Ejaz wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">There is any way to control dictionary attack from the mailscanner.
As we are receiving huge number of such Spam messages. <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Thanks in advance for the help. <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial"><span style="font-size:10.0pt;font-family:Arial">Regards, <br>
__________________<br>
Mohammed Ejaz <br>
Sr,Systems Administrator<br>
Middle East Internet Company (CYBERIA)<br>
<u></u><u></u>Riyadh<u></u>, <u></u>Saudi Arabia<u></u><u></u><br>
Phone: <a href="tel:%2B966-1-4647114%C2%A0%20Ext%3A%20140" value="+96614647114" target="_blank">+966-1-4647114 Ext: 140</a><br>
Mobile <a href="tel:%2B966-562311787" value="+966562311787" target="_blank">+966-562311787</a><br>
Fax: <a href="tel:%2B966-1-4654735" value="+96614654735" target="_blank">+966-1-4654735</a><br>
E-mail: <a>mejaz@cyberia.net.sa</a></span></font><u></u><u></u></p>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
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</blockquote><br><br></div></div><span class="HOEnZb"><font color="#888888">-- <br>-- <br>Martin Hepworth, CISSP<br>Oxford, UK<br>
</font></span><br>--<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><br>--<br><br>Alex Neuman van der Hans<br>Reliant Technologies / Vida Digital<br><a href="http://vidadigital.com.pa/" target="_blank">http://vidadigital.com.pa/</a><br>
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