To get a List of SMTP Addresses and export them to CSV:

Get-Mailbox -ResultSize Unlimited |Select-Object DisplayName,PrimarySmtpAddress, @{Name=“EmailAddresses”;Expression={$_.EmailAddresses |Where-Object {$_.PrefixString -ceq “smtp”} | ForEach-Object {$_.SmtpAddress}}} | Export-CSV "C:\Temp\List-SMTP-Address.csv"
Category: Cloud