Arlo alert turns on Wemo switch.
Currently set this up with a separate hotmail account. Forwarding from hotmail isn't great so have setup Mozilla Thunderbird on a PC I have running 24/7 to check every minute and forward the mail onto IFTTT. It's not ideal but will switch on a light if something is detected on the driveway (max 1min delay due the forwarding). I have rules in Arlo to only use the Hotmail account over night and a rule in Wemo to switch the light off again after 10mins. Hope this helps someone until Netgear pull their finger out and get IFTTT integrated.