Export EmailAddresses

I have  a list of user and would like to have their email addresses in following CSV format.

Displayname,EmailAddresses1,EmailAddress2..........

It similiar to:

http://blogs.technet.com/b/heyscriptingguy/archive/2013/07/22/export-user-names-and-proxy-addresses-to-csv-file.aspx

I been tried to figure out but so far failed. What i got:

$Names = 'user1','user2'

Foreach ($u in $Names){

$email= (Get-Mailbox -Identity $u).emailaddresses | Select -ExpandProperty smtpaddress

#For ($i=0;$i -le $name.count;$i++){

$email = @{}
 
}#}

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