Not able to add Gmail account in my em Client

I have installed em client, but I am unable to setup my gmail account, after adding gmail account it shows error ‘An attempt to connect to …has failed this could be caused by the server unavailability or incorrect settings’.

This error is coming from last 2 days even after multiple attempts to connect the gmail account.

I have checked all the IMAP and SMPT settings also, all looks fine.

I am able to add my yahoo account successfully.

Any suggestions or am I missing something here or em Client does not work with Gmail?

Thanks

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