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Exch 2K SP2 and Rule limitations

By tfbiii2002 ·
I have a user who gets quite a bit of mail and uses rules to keeps his inbox organized. We seem to have hit a rule limit of about 50 separate rules. I'm looking for some way to increase or remove this limit. I've search technet and my reference docsand can't seem to find this limit mentioned anywhere.

There are no space restrictions in effect on the server or this user.

TIA,

Fred Buecker

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Exch 2K SP2 and Rule limitations

by DKlippert In reply to Exch 2K SP2 and Rule limi ...

You can have unlimited number of rules in Outlook. But Exchange Server is limited by 32KB of storage for server-side rules.
It turns out that that is about 40 to 50 rules. You might look into combining different rules into one to see if that helps.
Here?s an MS article:

(Type the Q number in the Search box at support.microsoft.com)

Out of Space Error Message When Creating or Importing Rules

Q241325

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Exch 2K SP2 and Rule limitations

by tfbiii2002 In reply to Exch 2K SP2 and Rule limi ...

Thanks, but no thanks. I already came across that and it's not what I'm looking for. The rules are as "compressed" as possible, all they do is move mail from the inbox to a folder. I'm not interested in moving to a PST so I 2we can have more rules that way, it limits access of the mailbox to the system that has the PST on it. This mailbox is access by multiple systems at the same time. I need some way to increase or remove the rule limit at the server-level.

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Exch 2K SP2 and Rule limitations

by DKlippert In reply to Exch 2K SP2 and Rule limi ...

Good luck. 32KB appears to be a fixed amount:

"To work around this issue:

- Create distribution lists (DLs) to group recipients in rules, instead of
using individual recipients.

- Keep the number of recipients small in rules.

- Keep the names of recipients as small as possible.

MORE INFORMATION
================

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."

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Exch 2K SP2 and Rule limitations

by tfbiii2002 In reply to Exch 2K SP2 and Rule limi ...

Thanks again for pasting TechNet information I have already read. The above information is basically for forwarding messages to a number of users based on rules where the rules we are using only move a message from the inbox to a folder within the account or inbox. I.E. Messages from TechRepublic mail lists get moved from INBOX to INBOX:TECHREPUBLIC

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Exch 2K SP2 and Rule limitations

by adeal In reply to Exch 2K SP2 and Rule limi ...

Why not just use client-based rules instead of server based rules then?

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Exch 2K SP2 and Rule limitations

by tfbiii2002 In reply to Exch 2K SP2 and Rule limi ...

Unless I'm missing the obvious, that would mean moving
to a PST format which defeats the purpose of having the
mailbox available to several users at the same time. The
mail needs to stay on the server.

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Exch 2K SP2 and Rule limitations

by tfbiii2002 In reply to Exch 2K SP2 and Rule limi ...

Point value changed by question poster.

I've doubled the points in hopes of getting
closer to an answer.

Thanks,

Fred

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Exch 2K SP2 and Rule limitations

by adeal In reply to Exch 2K SP2 and Rule limi ...
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Exch 2K SP2 and Rule limitations

by tfbiii2002 In reply to Exch 2K SP2 and Rule limi ...

The link you attached doesn't give any information on how to force a rule to be client-side. All it states is what conditions prompt a client-side rule. Things I am already aware of and information that doesn't assist me.

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Exch 2K SP2 and Rule limitations

by TimTheToolMan In reply to Exch 2K SP2 and Rule limi ...

Hi,

Unless you manage to find a registry setting to change the 32kb limit, then you're going to have to assume its a hard and fast limit.

Its even possible its not a registry changable limit - it COULD be compiled into the code. If thats the case, then there simply is NO fix.

Based on DKlippert's very good answers, why dont you create a rule that forwards the message on to another account if it isn't affected by the other rules - and that gives you another 32kb worth of rules to play with?

The two accounts would ideally have all their folders shared so the messages could continue to be moved into "one" set of folders.

I've scoured the net and find very few references to this limit, let alone registry hacks to change it. At some point you're going to have to consider workarounds rather than a "fix"...

Cheers,
Tim.

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