Managing Exchange using PowerShell

New distribution group

new-distributiongroup -name "Group Name" -Alias "groupalias" -type "distribution" -organizationalunit example.com/OU_Name/Distribution Groups" -primarysmtpaddress "group.name@example.com"

User named: First Last at external.com

New mail contact

New-MailContact -Name "First Last" -ExternalEmailAddress "first.last@external.com" -alias "flast"

User named: First Last

New Mailbox and New AD user at the same time

New-Mailbox -Name "First last" -Alias "flast" -FirstName "First" -LastName "Last" -DisplayName "First Last" -OrganizationalUnit "example.com/users" -UserPrincipalName "flast@example.com" -Password (ConvertTo-SecureString -String 'password_complying_to_ad_password_policy' -AsPlainText -Force)

-Name will be used as the -DisplayName if no display name is specified

List users with no mailbox

Get-User -RecipientTypeDetails User -Filter {UserPrincipalName -ne $null } -ResultSize unlimited

| Enable mailbox for user with no mailbox

Enable-Mailbox -Identity flast@example.com -Alias "flast" -DisplayName "First Last" -Database "mdb01"

-Alias, -DisplayName and -Database aren't mandatory and can be populated automatically

Did the above enabling work? check using:

Get user info

Get-Mailbox -Identity flast | Format-List Name,DisplayName,Alias,PrimarySmtpAddress,Database

Get distribution list members

Get-DistributionGroupMember -Identity GroupName