Hi Tomer
I'm AnnaThomas and I'd happily help you with your question. In this Forum, we are Microsoft consumers just like yourself no one here is a Microsoft employee.
You may also need to generate an app password for your Gmail account and use it instead of your regular password in Outlook 2013. This is because Gmail uses two-step verification to protect your account from unauthorized access.
See Karl Timmerman's suggestion for reference: https://answers.microsoft.com/thread/c382d917-2248-4e08-9262-90583741d975
I hope this helps ;-), let me know if this is contrary to what you need, I would still be helpful to answer more of your questions.
Best Regards,
AnnaThomas
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