In edit user account ( administrator/index.php?option=com_virtuemart&view=user&task=edit)
and Purchase order (administrator/index.php?option=com_virtuemart&view=orders&task=edit&virtuemart_order_id=)
I do not see the email field.
In cart: Logged users have to fill the email field again (just problem width plugin One Page Checkout)
VM 3.2.3
Joomla! 3.7.2
PHP 7.0.19
forum search?
http://forum.virtuemart.net/index.php?topic=137625.msg481979#msg481979