Tickets - automate pairing based on subject regex

We receive a lot of emails from our voicemail provider in format of “new voicemail - number XX”

It would be great to have a regex handler so that we could set up an automation like the following:

IF voicemail received from X (voicemail email address)

Attempt to match the phone number (per the subject) to a customer in Splynx

If a successful match, then similar to the FROM email match method, associate the ticket with the customer.