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wow. small text. My eyyyes...<BR>
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Wouldn't enabling SPF on hosted domains help with this?<BR>
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That way, sender verification is only checking on email sent from your own valid mailservers anyway, saving your precious cpu load. We were getting several thousand sender lookups a day from various sources. We enabled spf with the -all (It had been ~all while we were testng) flag, and that dropped down to a couple of hundred, generally to valid addresses, which I have no problem with.<BR>
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-----Original Message-----<BR>
<B>From</B>: Hostmaster <<A HREF="mailto:Hostmaster%20%3cHostmaster@computerservicecentre.com%3e">Hostmaster@computerservicecentre.com</A>><BR>
<B>Reply-to</B>: MailScanner discussion <mailscanner@lists.mailscanner.info><BR>
<B>To</B>: MailScanner discussion <<A HREF="mailto:MailScanner%20discussion%20%3cmailscanner@lists.mailscanner.info%3e">mailscanner@lists.mailscanner.info</A>><BR>
<B>Subject</B>: RE: Sender Address Verification<BR>
<B>Date</B>: Mon, 13 Jul 2009 16:35:03 +0100<BR>
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<FONT SIZE="1">>I recently deployed the smf-sav, which works quite well. It takes a lot of load off mailscanner.</FONT><BR>
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<FONT SIZE="1">>I recently got listed on backscatter because I have used it on one of “their” members so it seems.</FONT><BR>
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<FONT SIZE="1">>Looking on their Web Site it seems there is nothing I can do only pay them 50 euro to get delisted, and then what happens if I do >sav again?</FONT><BR>
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<FONT SIZE="1"> </FONT><BR>
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<FONT SIZE="1">>Have any of the list had this issue, with smf-sav? Is there anything that can be done from your experience? I do not want to turn >off smf-sav.</FONT><BR>
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<FONT SIZE="1">>Thanks to you all</FONT><BR>
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<FONT SIZE="1">I am assuming you mean you have been listed at backscatterer.org...</FONT><BR>
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<FONT SIZE="1">I must admit that I find something particularly distasteful about being on the receiving end of sender validation lookups, especially considering that some of our servers receive email for domains which they do not send email for. In my opinion, nobody should rely on someone else’s resources (memory and CPU time) to work out if they should accept an email, and I guess that the Backscatter blacklist was built on this basis – their sender callout policy is here - <A HREF="http://www.backscatterer.org/?target=sendercallouts">http://www.backscatterer.org/?target=sendercallouts</A> and I have to say that I agree with all points.</FONT><BR>
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<FONT SIZE="1"> </FONT><BR>
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<FONT SIZE="1">I am pretty sure that this has been discussed on-list before and that some people have very strong feelings in both ways regarding callouts, so it might be worth searching the list archives for further info on the subject.</FONT><BR>
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<FONT SIZE="1">Best Regards, </FONT><BR>
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<FONT SIZE="1">Richard</FONT><BR>
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