New Product Suggestion - Mailbox Sensor

I had pretty good luck up to 60 feet from the house if I mounted the entry sensor on the door of the mailbox, and the magnet inside. Upside is that it allows for a stronger signal to the base, but the base still cannot receive the 'closed' signal. Downside is rain exposure when the door is opened. I see your point about some extra programming needed, as I really only need a notification, never an alarm, no matter the state of the alarm setting. That, and the need for it to default to 'closed', whether signal is lost or an actual 'closed' signal is received by the base. It only needs to notify once for each separate time an open signal is received.

@dlpsr​ I misinterpreted your post but now got it. Wire was insulated and I drilled a hole in the bottom back of the mail box to run the wire on the outside of the mailbox.  Location is approx 35 - 45 feet from the base, trees in the way etc and was not a reliable connection. Did a trial for about 2 weeks and our USPS postman faithfully called me each day when we pulled down the door. :-) While his calls were like clockwork, can't say the same for the modified entry sensor.  Not reliable for this purpose, at least with my experience.

@captain11​ I'll try Zwave, just for fun. My mailman is like the one in Funny Farm.

@captain11​ If you still want to mess with it, and if your box is metal, try wood underneath or plastic, like they recommend for some metal doors. I'd imagine mail boxes are made of cheap & possibly magnetic steel.

Or last resort that may mess with frequency, strip a 1/4 in off the wire and add some just twisted on to test.

With Zwave I can put an Aeotec router outside in a receptacle if needed. All sensors are finiky with steel and bricks etc.