I have MQTT working though I am still on 1.1.0. I just put in the IP addr and that is it. I run the MQTT server on a local linux box on a different subnet. I have Door Open and Close checked as well as Notify me for both Open longer than 10 and at UTC time 0. I have witnessed messages for all of those cases.
I do not use IFTTT nor Blynk though the Blynk domain and port were set by default and I did not change that.
No idea what your problem is but I have included an image of my integration page.