Get-Mailbox <mail address or alias> | select-object WhenCreatedUTC, Name
Tag: PowerShell
Get IPv4 DHCP Reservations in a CSV file
Copy code below and save as Get-DHCPReservations.ps1
Get-DHCPServerV4Scope | ForEach {Get-DHCPServerv4Lease -ScopeID $_.ScopeID | where {$_.AddressState -like ‘*Reservation’} | Select-Object ScopeId,IPAddress,HostName,ClientID,AddressState | Export-Csv “C:\temp\DHCPReservations.csv” -NoTypeInformation
Mailbox Rules
Get rules list
Get-InboxRule -Mailbox <mailbox name or alias>
Get detail on each rule
Get-InboxRule -Mailbox <mailbox name or alias> -Identity “<rule name>” | Select -Property *
Disable Rule
Disable-Inboxrule -identity “<Rule name>” -mailbox <mailbox name or alias>
Remove Rule
Remove-Inboxrule -identity <Rule Name> -mailbox <mailbox name or alias>
Purge Mailbox Deleted Items Folder
Get current Settings
Get-Mailbox service@contoso.de | Format-List SingleItemRecoveryEnabled,RetainDeletedItemsFor
or use
Get-mailbox service@contoso.de | fl *retention*,*retain*
Set New Settings
Set-Mailbox -Identity service@contoso.de -SingleItemRecoveryEnabled $false -RetainDeletedItemsFor 1
#Purges folder deletes after 1 day
Delete Items in Dumpster
Search-mailbox -identity service@contoso.de -SearchDumpsterOnly -DeleteContent
View Recoverable items in Dumpster
Get-MailboxFolderStatistics service@contoso.de -FolderScope RecoverableItems | Format-List Name,FolderAndSubfolderSize
Remove a Name Server from All Reverse Zones
##############################
# The following section contains all input parameters
$DC = “DC1.contoso.internal” # Domain controller to be used
$nameserver = “DNS.contoso.internal” # Nameserver to remove
#
##############################
$list = Get-DnsServer -ComputerName $DC | select -Property serverzone -ExpandProperty serverzone | where {$_.isdsintegrated -eq “true” -and $_.isreverselookupzone -eq “true”} | select -Property zonename
foreach ($zone in $list ) {Remove-DnsServerResourceRecord -ComputerName $DC -ZoneName $zone.zonename -RRType Ns -Name “@” -RecordData $nameserver -Force}
EMS Not working
Sometimes an Exchange server installation goes bad and EMS will not launch from the Start Menu. This post helps to get a local EMS when you start to cleanup or want put things right.
Run these 2 commands in order on the Exchange server
exshell.psc1
exchange.ps1
Get all Remote IP Ranges from All Receive Connectors
$FormatEnumerationLimit =-1
Get-ReceiveConnector | Select-Object -Property ‘Identity’,’RemoteIPRanges’ | FL > c:\temp\relay.txt
Search a user’s mailbox for meetings
Search-Mailbox -identity Jbloggs@contoso.com -SearchQuery ‘Kind:meetings AND From:peter@xyz.com AND Subject:”Managers Monthly Meeting”‘ -TargetMailbox myaddress@contoso.com -TargetFolder ExchangeSearches -LogLevel full
Get all DNS Zones and Records in CSV
$results = Get-DnsServerZone | % {
$zone = $_.zonename
Get-DnsServerResourceRecord $zone | select @{n=’ZoneName’;e={$zone}}, HostName, RecordType, @{n=’RecordData’;e={if ($_.RecordData.IPv4Address.IPAddressToString) {$_.RecordData.IPv4Address.IPAddressToString} else {$_.RecordData.NameServer.ToUpper()}}}
}
$results | Export-Csv -NoTypeInformation c:\temp\DNSRecords.csv -Append
Assign full permissions for a user to another users calendar
Cannot assign folder permissions in mixed hybrid environment i.e. cannot grant a M365 user calendar permissions to an On-Prem 2016 mailbox or vice versa.
john@contoso.com is the calendar being shared
scahill@xyz or dirk@contoso.de is the person who is being granted permission
Get Existing Permissions
Get-MailboxFolderPermission -Identity john@contoso.com:\Calendar
If user is not English speaking get calendar or other folder local name using
Get-MailboxFolderStatistics -Identity dirk@contoso.de -FolderScope Calendar
Get the existing permissions using the local calendar name
Get-MailboxFolderPermission -Identity dirk@contoso.de\Kalendar
Grant Edit Permissions
Set-MailboxFolderPermission -Identity john@contoso.com:\Calendar-User <alias> -AccessRights Editor
Grant Manage Permissions
Add-MailboxFolderPermission -Identity john@contoso.com:\Calendar -User scahill@xyz -AccessRights Editor -SharingPermissionFlags Delegate,CanViewPrivateItems
Note -SharingPermissionFlags is cloud only
Grant Free/Busy Permissions Only
Add-MailboxFolderPermission -Identity john@contoso.com:\Calendar -AccessRights AvailabilityOnly -User scahill@xyz.com
Grant Read-Only Permissions
Add-MailboxFolderPermission -Identity john@contoso.com:\Calendar -AccessRights Reviewer -User scahill@xyz.com
Grant Limited Details Permissions
Set-MailboxFolderPermission -Identity john@contoso.com:\Calendar -User normilg -AccessRights Editor – scahill@xyz.com -SharingPermissionFlags Delegate,CanViewPrivateItems
Remove Permissions
Remove-MailboxFolderPermission -Identity john@contoso.com:\Calendar -User scahill@xyz.com
Calendar Sharing Rights aka Access Rights
Author: CreateItems, DeleteOwnedItems, EditOwnedItems, FolderVisible, ReadItems
Contributor: CreateItems, FolderVisible
Editor: CreateItems, DeleteAllItems, DeleteOwnedItems, EditAllItems, EditOwnedItems, FolderVisible, ReadItems
None: FolderVisible
NonEditingAuthor: CreateItems, FolderVisible, ReadItems
Owner: CreateItems, CreateSubfolders, DeleteAllItems, DeleteOwnedItems, EditAllItems, EditOwnedItems, FolderContact, FolderOwner, FolderVisible, ReadItems
PublishingEditor: CreateItems, CreateSubfolders, DeleteAllItems, DeleteOwnedItems, EditAllItems, EditOwnedItems, FolderVisible, ReadItems
PublishingAuthor: CreateItems, CreateSubfolders, DeleteOwnedItems, EditOwnedItems, FolderVisible, ReadItems
Reviewer: FolderVisible, ReadItems