The sequence is triggered when an email is received at email@example.com from a specified email address.
The email subject must also contain the keyword you specify in the trigger.
The email address the email must come from in order to trigger the sequence.
A keyword which must appear in the email subject in order to trigger the sequence. The subject can also contain additional text, but the keyword must be present for the sequence to trigger.
Once the sequence has triggered, the subject of the incoming email is available in the sequence parameter