This script will create Exchange Mail Contacts from a list in a CSV File
Import-Module ActiveDirectory
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Admin
Import-CSV C:\ContactList.csv | ForEach-Object{
New-MailContact -Name $_.Name -ExternalEmailAddress $_.Email -OrganizationalUnit $_.OUpath
}
by 
I used this script to migrate OCS 2007 R2 users to Lync 2010. On the contract I was working we had 6000 users to migrate across EMEA. Users were split into OUs for their Country, so we did this each night country by country.
Import-Module Lync
Get-CSUser -OU "OU=UK,DC=domain,DC=local" | %{
$User = $_
Try {
Move-CsLegacyUser -Target "lync-pool-name" -EA STOP
}
Catch{
Echo $User $_.exception.Message
}
} | Out-File C:\Lynclog.txt
by The below script will show ActiveSync details for users in an OU, this script also only reports devices that have synced after a specified date.
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Admin
Get-Mailbox -ResultSize:Unlimited -OrganizationalUnit domain.local/OU | ? {$_.Organizationalunit -eq "domain.local/OU "} | ForEach {Get-ActiveSyncDeviceStatistics -Mailbox:$_.Identity} | Where {$_.LastSuccessSync -gt '01/01/2014'} | ft -AutoSize Identity,DeviceType,DeviceID,DeviceModel,LastSuccessSync
by This script will take a list of email address and return the users AD info, I have enabled View Entire Forest, in case your are in a multi domain environment.
Import-Module ActiveDirectory Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Admin $AdminSessionADSettings.ViewEntireForest = $true Get-Content C:\EmailList.txt | Get-Mailbox | FT SamAccountName,Alias,PrimarySMTP
by This script will export a list of all Site and Subnets and the domain controllers in them.
[cmdletbinding()]
param()
$Sites = [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest().Sites
$obj = @()
foreach ($Site in $Sites) {
$obj += New-Object -Type PSObject -Property (
@{
"SiteName" = $site.Name
"SubNets" = $site.Subnets -Join ";"
"Servers" = $Site.Servers -Join ";"
}
)
}
$obj | Export-Csv 'C:\sites.csv' -NoType
by