Hello,I figure out, thanks to members of theTechnet forum that my RulesQuota was set to 256KB:Get-Mailbox -Identity graiggoriz | flI would like to know how can I know how much of the 256 KB is used by my rules??Because I got an message saying that my new rule can not be saved. Do you have any explaination about that error?? could it be because of the number of rules I have??Please find my error message below:"One or more rules cannot be uploaded to microsoft Exchange and have been deactivated. This could be because some of the paramaters are not supported, or there is insufficient space to store all of your rules."thanks in advance for your help.

I guess it is not possible to get the current usage size of rule quota. It normally happens when you have number of users, contacts or any other AD objects added into rules and those will requires space to save data into rule quota. Similarly like number of user name you add into text file, it increase the size of txt file.Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Would exporting my rule on my C:\ drive and checking the size will give me the current size?I did that and got 60Ko still enough space to add other rules though... :-SIs there no other solution then?

Yes, it should give approximate size. Yeh as discussed earlier you can set the rule size upto 256KB. Yes there isn't any :)Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

My rule size is already set up to 256KB. Could I increase the size by creation an exception ?

Hi,Just would like to add some points which i got on technet that Each rule is made up of seven parts. The rule properties themselves represent from 400 to 500 bytes of data without the recipients. Each recipient averages about from 400 to 500 bytes of space as well, and this data is stored in the conditions and restrictions portion of the rule. Distribution lists are considered one recipient and only take up from 400 to 500 bytes of space. The total amount of space that is allowed for each folder is 32 kilobytes (KB). Out of office e-mail messages are stored as rules, so they take up space as well.The following information is used to compile the space that is used by a rule: Rule Sequence. The order of the rules in which this rule is fired. Rules State. The value that determines whether the rule is turned on or off. User State. Whether or not the user is logged on. Provider Name. Generally the provider name is "RulesOrganizer." Rule Name. This is stored in Unicode and ASCII. Rule Level. Information about the version of the rule. Rule Provider Data. Information specific to the Rules Wizard. Conditions and Restrictions. The majority of the rule information, where size is concerned. Data from the user interface (UI) of the Rules Wizard. Distinguished Name. This is stored in Unicode and ASCII. Display Name. This is stored in Unicode and ASCII, and it is stored twice. Exceptions. Exceptions to the rule. Conditions. Conditions for the rule. Anil

Thank you very much for the information but it doesn't tell me how can I solve the problem.Can i increase the rule size to 512Ko by creating an exeption for the account? any other solutions are welcome.. :-S

No it is not possible to set rule quota more than 256KB in Exchange 2007 and same thing applies which I told earlier for Exchange 2003 when you hit 32KB size... :) Check below article and try workarounds to reduce the size of rules... http://support.microsoft.com/kb/886616 Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com