Open PowerShell >
Get-Mailbox -ResultSize Unlimited |Select-Object DisplayName,ServerName,PrimarySmtpAddress, @{Name=EmailAddresses;Expression={$_.EmailAddresses |Where-Object {$_.PrefixString -ceq smtp} | ForEach-Object {$_.SmtpAddress}}}
Open PowerShell >
Get-Mailbox -ResultSize Unlimited |Select-Object DisplayName,ServerName,PrimarySmtpAddress, @{Name=EmailAddresses;Expression={$_.EmailAddresses |Where-Object {$_.PrefixString -ceq smtp} | ForEach-Object {$_.SmtpAddress}}}