01) Access the Control Panel
02) After login click Settings >> Customer Details
03) Select Send email to customer after login
Click EDIT
True = Enable
False = Disable
04) Click the Refresh button.
To edit the text content of the email in the Control Panel >> Locations >> Edit Languages
Click login
Edit the fields:
EMAIL_TEXT_LOGIN_CHECK_SUBJECT
EMAIL_TEXT_LOGIN_CHECK_TEXT
EMAIL_TEXT_LOGIN_CHECK_TEXT1
EMAIL_TEXT_LOGIN_CHECK_TEXT2
EMAIL_TEXT_LOGIN_CHECK_TEXT3
EMAIL_TEXT_LOGIN_CHECK_TEXT4
EMAIL_TEXT_LOGIN_CHECK_TEXT5
Click Save Changes