Receiving SMTP error in orders Magento 2

[mark_yamasaki]

I'm running Magento 2.2.4 and when I go into orders and try to send email to customer i receive this message...

Can anyone help me here?

We cannot send any email now and customers are not receiving any order confirmation emails

thanks!

[namratavora]

Hello @mark_yamasaki ,

Can you please upload image on third party service and give us URL. We can't see attachment. 

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[mark_yamasaki]

http://symmtech.net/1.png