Allow certain domains automatic approval when using manual Registration approval

Currently I have all my webinars set to Manual approval and I get a fair amount to approve every day. However I am not best placed to know if the registrant should be allowed to join or not . Can I keep this as a manual process but add a number of different "@emailaddresses.com"  that are automatically allowed to join and leave just a smaller for me to check on and manually approve? It would make the approval process faster for me as well as for pre approved company persons to register.