Also milter-null can help with backscatter and fake bounces.<br><br><div class="gmail_quote">On Mon, Jun 8, 2009 at 5:42 PM, Kevin Miller <span dir="ltr"><<a href="mailto:Kevin_Miller@ci.juneau.ak.us">Kevin_Miller@ci.juneau.ak.us</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2">Doing any graylisting, greet-pause, or recipient address
verification? Stopping invalid messages at the MTA handshake level takes a
lot of the load off MailScanner...</font></span></div>
<div><font color="#0000ff" face="Arial" size="2"></font> </div>
<p><font size="2">...Kevin<br>--<br>Kevin
Miller
Registered Linux User No: 307357<br>CBJ MIS
Dept.
Network Systems Admin., Mail Admin.<br>155 South Seward
Street ph: (907) 586-0242<br>Juneau, Alaska
99801 fax: (907
586-4500<br></font></p>
<div> </div><br>
<div dir="ltr" align="left" lang="en-us">
<hr>
<font face="Tahoma" size="2"><b>From:</b> <a href="mailto:mailscanner-bounces@lists.mailscanner.info" target="_blank">mailscanner-bounces@lists.mailscanner.info</a>
[mailto:<a href="mailto:mailscanner-bounces@lists.mailscanner.info" target="_blank">mailscanner-bounces@lists.mailscanner.info</a>] <b>On Behalf Of </b>Zaeem
Arshad<br><b>Sent:</b> Tuesday, June 02, 2009 7:42 PM<br><b>To:</b> MailScanner
discussion<br><b>Subject:</b> Re: Performance numbers for a DELL
R710<br></font><br></div>
<div></div><br><br>
<div class="gmail_quote">On Wed, Jun 3, 2009 at 12:47 AM, 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="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Zaeem<br><br>nice.<br><br>depends
on the tests you run (RBLs etc) and the size of the emails.<br><br>look in the
wiki for performance and tuning on both MailScanner
and<br>Spamassassin.</blockquote>
<div><br><br>I have a test box with the same specs but 8 Gigs of RAM. My
performance tuning so far has been<br><br>- tmpfs for message scanning<br>- DNS
caching server on the same box<br>- Lower timeouts on Postfix (another instance
handling retries)<br>- Compiled rules on SA<br>- DCC, Razor<br>- Clamd<br>-
Asyncrhonous logging<br><br>Filesystem underneath is XFS and average mailsize is
around 60KB. I have pretty much made all the changes suggested and currently the
server is handling around 45000 emails/hour. Do you think increasing the number
of MailScanner children might help? What other performance tweaks can I have? I
am looking to scale the system to handle at least 65 emails/second with
antivirus, antispam scanning and RBL checks.<br><br><br>--<br>Zaeem
<br></div></div><br></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Alex Neuman van der Hans<br>Reliant Technologies<br>+507 6781-9505<br>+507 202-1525<br><a href="mailto:alex@rtpty.com">alex@rtpty.com</a><br>Skype: alexneuman<br>