Accept or reject messages from

This function reads delivery restrictions from objects in Active Directory. By default it looks at Groups. As the same information can be returned using Get-DistributionGroup or Get-Mailbox using Exchange 2007; this function is aimed at Exchange 2003.
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Get-MailboxStatistics for Exchange 2003

Using PowerShell to create a version of Get-MailboxStatistics for Exchange 2003.
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Exchange 2003: Returning mailbox sizes

This script uses WMI and Active Directory queries to return information about mailbox sizes from Exchange and the limits set in Active Directory.

Download GetMailboxStatistics.vbs

A number of people have been looking for Get-MailboxStatistics for Exchange 2003. I have a PowerShell version of this script for exactly that reason here.
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Finding a user in Exchange mailbox security

A script to read the mailbox security descriptor from Active Directory with the intention of finding a particular user or security principal. It will not display the security descriptor, it simply displays whether or not the account is present in the access control list.
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Requirements for hosting SMTP servers

One of the most common problems with outbound mail is configuration of the SMTP service name and DNS records. This post briefly covers the requirements for running a public SMTP service, it does not matter if that server is Exchange, or Sendmail, or PostFix, the same set of rules apply.

The outbound rules do not apply when using a Smart Host to send mail. The inbound rules do not apply if receiving mail through a third-party (such as an anti-spam service).
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Import contacts from a csv file using VbScript

Download ContactImport.vbs

This script will create contacts in Active Directory based on a formatted CSV file. It was written to allow automatic synchronisation of contacts using a CSV file as the source.
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VbScript: GetStores

A VbScript function to retrieve all Exchange Information Stores from Active Directory, returning the results as a Dictionary object containing the store name and store distinguishedName.
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