Can get sender EmailAddress

[quantrpeter]

["Sender"]=>
object(jamesiarmes\PhpEws\Type\SingleRecipientType)#2645 (1) {
  ["Mailbox"]=>
  object(jamesiarmes\PhpEws\Type\EmailAddressType)#2646 (5) {
    ["EmailAddress"]=>
    NULL
    ["ItemId"]=>
    NULL
    ["MailboxType"]=>
    string(6) "OneOff"
    ["Name"]=>
    string(10) "eTender 03"
    ["RoutingType"]=>
    NULL
  }
}

php --version
PHP 5.6.40 (cli) (built: Jan 9 2019 15:10:36)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies

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