This will shown and no order confirmation is going to customer automatically. Can anyone tell me that ho it will work automatically after receiving the order.
As you mention that you have configured all the necessary Magento 2 mailing systems, so you may need to check below point:
Got to Stores -> Configuration -> Advanced -> System
Under Mail Sending Settings make sure - Disable Email Communications is set to No.
Also verify your Host and Port fields if you are using any external mailing server.
Go to Stores -> Configuration -> Sales -> Sales Emails
Under General Settings tab, choose Asynchronous sending to Disable
Under Order tab Enabled to Yes
Now clear/refresh your cache.
Hope this helps you.
No actually we had changed to google suite from webmail the problem is that order confirmation is showing on webmail and customer mails on gsuite.