Nokia E72 Mail For Exchange for gmail

Issue: Not able to send mails using Nokia mail for Exchange when configured for gmail.

How to Configure
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1)Goto Menu -> Email -> New Mailbox -> Start configuration -> select mail for exchange -> Select which all syncing options needed(like calender, todo or contacts).
Use the configurations below
mail: @gmail.com
eg: abc@gmail.com

password :

username: @gmail.com
eg: abc@gmail.com

Domain: Leave it blank

Mail for exchange server: m.google.com