I don't have an answer for you on that. I suppose a mail gateway between your Exchange box and the Internet could do some whitelisting, and discard any unrecognized headers, but I wouldn't have a good guess as to how to go about it.
Kurt On Tue, Mar 17, 2009 at 13:43, McCready, Robert <rob.mccrea...@dplinc.com> wrote: > Is there a way to limit these X-headers, or find out what is causing so many? > > -----Original Message----- > From: Kurt Buff [mailto:kurt.b...@gmail.com] > Sent: Tuesday, March 17, 2009 4:30 PM > To: MS-Exchange Admin Issues > Subject: Re: Named Property Limit > > One of the things that seems to contribute are X- headers on inbound > mail - each new X-header is a new named property. > > Want to DoS someone? Send them emails with new X-headers - lots of > different ones. > > Spam seems to accumulate them, for one. > > Just looking at your message from the list, I see 4 different X-headers: > > X-MS-Has-Attach: > X-MS-TNEF-Correlator: > x-ems-proccessed: jxfyzdhlyVyYF5VF4W3Asg== > x-ems-stamp: sLcJ9ri/feAlRgbRlwdyOA== > > > Kurt > > On Tue, Mar 17, 2009 at 13:20, McCready, Robert > <rob.mccrea...@dplinc.com> wrote: >> I'm not sure I understand this named property quota thing or how we reached >> our limit... >> >> >> >> (http://technet.microsoft.com/en-us/library/bb851492.aspx) >> >> >> >> but my question is, how big of a deal is it really? We apparently reached >> our 16,000 limit back in December, yet nobody has had any trouble >> sending/receiving email. >> >> >> >> >> >> ________________________________ >> >> From: McCready, Robert [mailto:rob.mccrea...@dplinc.com] >> Sent: Monday, March 16, 2009 2:41 PM >> To: MS-Exchange Admin Issues >> Subject: Event 9667 Quota Limit on Named Property >> >> >> >> We are running Exchange 2007 SP1. Apparently, we have reached our "named >> property" quota (which I do not completely understand) on one of our storage >> groups. >> >> >> >> Event ID: 9667 >> >> Source: MSExchangeIS >> >> Computer: Exchange 2007 mailbox clustered server >> >> Failed to create a new named property for database "SGx\MDBx" because the >> number of named properties reached the quota limit (9274). User attempting >> to create the named property: "Hub Transport Server" Named property GUID: >> xxxxxxxx-xxxx-xxxx-xxxx-xxxxxx Named property name/id: "pipe-summary" >> >> >> >> All the fixes I read say to either.. >> >> >> >> Modify the registry and dismount/remount the database. >> Create a new Storage Group and move all the mailboxes there. >> >> >> >> We've only been running Exchange 2007 for about 18 months. Is this a common >> occurrence (reaching the quota limit)? Is there any way to find out if >> there's a particular violator that may have caused us to reach this >> quota??? Would you recommend Fix number 1 or 2? Enough questions? >> >> Thanks. >> >> Robert >> >> >> >> >> >> > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ > > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
