Adding contact to account automatically in helpdesk?

Adding contact to account automatically in helpdesk?

Hello,

We're using Zoho desk to managed our helpdesk tickets.  Is there a way to add contacts (email senders) automatically to an account based on their emails domain name? 

For example: 

when UserA@companyx.com send an email to our support mailbox, a trigger or a workflow would automatically add the userA to Companyx account if it does exists 

Please advise

Thank you