There have been many attempts at proximity marketing over time, initially by sending information as contacts over Bluetooth to mobile phones. Nowadays much more suited technologies for this are beacons and geofencing, where it is easier to discriminate what information customers will interact with, provided mobile apps for the purpose provide such screening and granularity. Read more about Proximity marketing to bloom this year?[…]
E-mails generated from mobile forms, registration etc are now queued, to improve responsiveness. The queue is checked each minute, so it can take that long before a message is sent. It’s prepared for queueing SMS’s as well, but it’s not used for that yet.