If new email in trigger label, forward it on to IFTTT using my email for processing.
Put email@example.com in the to address. Then you can make a gmail filter so that all emails that come in with a certain syntax (or all that come in to (your email)+firstname.lastname@example.org) are forwarded on to ifttt from your address and processed. That way no matter where you are or what computer you are on, if you have access to email you can send yourself emails to be processed using your triggers. Unfortunately no attachments for now, hopefully ifttt will add them later.