O-Xchange Notes from the Field!

Thursday, March 26, 2009

how to increase rules quota for exchange 2007 user

In exchange 2007, the rules limit is higher than exchange 2003. It defaults to 64KB
To increase this limit for a mailbox user, use this powershell command:
Set-Mailbox username -RulesQuota:256KB
256KB is an example. Remember that setting limit too high will increase memory requirments of this mailbox

Wednesday, March 25, 2009

Message Tracking vs SMTP Protcol Logging in Exchange 2007

Message tracking
 Is a feature that you can use to track messages across an Exchange organization. You can track all types of messages, including system messages and regular e-mail messages that are going to or coming from a non-Exchange messaging system. You can use Message Tracking Center to locate messages that failed to arrive in your users' mailboxes, such as messages that are stuck in the message queue.
Message tracking is enabled by default in exchange 2007. You can modify the length of time log files are kept and increase logs directory size. The default period that tracking logs are kept is 30 days.
Protocol Logging
When you keep a history of all SMTP protocol activities, you can prove whether a particular message left your server, verify whether the SMTP virtual server is performing its work as expected or is experiencing communication problems, and identify attacks from the Internet.
Protocol Logging isn’t enabled by default on exchange 2007. Logging needs to be configured for the send and receive connectors. You can modify the length of time log files are kept and increase logs directory size. Default age period is set to 30days, but can be increased.

How to configure smtp protocol logging in exchange 2007

Technet Article:

Windows Groups type and scope explained

Article to read:

Why Universal Groups are preferred in Exchange 2007

Read this article:

Monday, March 16, 2009

set managed folder mailbox policy on server mailboxes

The pshell command below will apply deleted items retention policy on all the mailboxes homed on a server. Please note that this policy is set on exchange organization level
 Get-Mailbox -Server "servername" -ResultSize unlimited | Set-Mailbox -ManagedFolderMailboxPolicy "Deleted Items Retention Policy" -ManagedFolderMailboxPolicyAllowed
use this pshell command to manually start the MRM service
Start-ManagedFolderAssistant -identity "servername" 
To set the schedule for the managed folder policy to run,
1. From exchange mgmt console, go to server configuration, click on mailbox, right click on your server, and click on properties
2. Click on messaging records management tab
3. Click on customize and choose desired schedule

Tuesday, March 10, 2009

reset cas-mailbox for a user

In some cases, due to improper login to at the onset, user may have issues with opening attachments in OWA
a faster way to resolve this is by using adsiedit
while in ADSI, go to properties of user and set this attribute MSExchMailboxFolderSet to 2147483647
This setting enables all OWA features.
Note: In some cases, user still has his/her outlook web access frozen and not able to do anything.
re-creating user's profile on the workstation fixed the problem

Friday, March 6, 2009

Registry change to allow MDB files in Outlook

1.  Close Outlook. 
2.  Open the Registry Editor. 
3.  If you are using Windows XP/Office 2007, expand the branches to HKEY_CURRENT_USER\ Software\ Microsoft\ Office\ 12.0\ Outlook\ Security
4.  Create a new string value by selecting New and then String Value from the Edit menu.
5.  Name the new value Level1Remove. 
6.  Double-click the new Level1Remove to edit it, and enter the filename extensions you'd like to stop Outlook from blocking. Extensions should be typed in lower case, without the dots (.), and separated by semicolons (;). For example, type 
exe;mdb;vbs to allow .exe, .mdb, and .vbs attachments, respectfully. 
7.  Click Ok and then close the Registry Editor when you're done. 
8.  The next time you restart Outlook, you'll now be able to open previously-blocked attachments.