This happens because your mail program is trying to load the external content, referenced in the email body, and by doing so, triggers the "Unsubscribe."

The most effective approach is usually disabling external content loading and link previews, as these are the primary mechanisms that cause unintentional unsubscribes.

These approaches proved to be beneficial to our customers:

1. Email Client Settings

Gmail:

Sometimes the initial handshake between your device and your router is taking longer than expected. This results in devices not saving network name and password. When this happens follow the steps below to connect your device to your WiFi

Here is the procedure to setup AirPort Utility and check your network strength:

First, connect your phone/tablet/computer to the same WiFi as you are connecting your new device to and  login to myspool.com. If you are already logged in then logout and log back in.

Then follow SETUP INSTRUCTIONS with one change:  skip the step that instructs you to create an account. Refresh your browser window instead to make sure that your new device appears under My Devices.

1. Activate your device:

On the right side of the home screen on myspool.com, under User Login section,  click on the link Create new account.

After you click on that link, you will see a screen that look like this: 

Login to your account at myspool.com,  click on Configure Device and remove your email address from the first line Email address for notifications.  Scroll down and hit Save.

Then click on Configure Device again and enter your email address again. Click Save.   

Check your email, find one with subject AWS Notification - Subscription Confirmation, open it and click on the Confirm subscription link.

First of all, we always recommend that if it is at all possible, write down you network name and password and then rename your new router and re-use the password. It is much easier than re-programming and re-connecting all devices that use your WiFi network at home.

If it is not an option, then follow the instructions described under 'How to move my device?':

Here is the procedure to setup AirPort Utility and check your network strength:

The SAS network is visible only when your device does not know how to connect to your WiFi.  Once you specify that information, for security reasons the configuration part of your device is no longer displayed. If you want to use a different WiFi network, you will need to clear your device first. See the FAQ section for your device on how to move your device to another location for detailed instructions.

We are using Amazon Cloud service to send email notifications.  This service requires that your request to receive such notifications is confirmed.  Look for an email with the subject "AWS Notification - Subscription Confirmation", open it and click on the link provided to confirm your subscription. It is a one-time action that is required for every new email address added.

If you cannot find this email, look in your Spam and Trash folders.   You can always remove and then add an email address, a subscription confirmation request will be sent again.

There is a good reason for that. Each device checks sensors in a certain order. Water sensors have the highest priority so they are checked first. In the case of the Dual Water sensor scenario, sensor number one is checked  first. If there is an alert to be sent by that water sensor, it gets sent. Then the throttling kicks in:  every device will send no more than one alert per minute to the cloud.  From there it will be sent on as SMS, email or pushbullet.

Different sensors send single and multiple alerts depending on their design purpose. 

Power ON and OFF,  Internet ON and OFF, and all battery-powered devices such as Water Level, Mail, DIY1, Floodstop, and Sensor send a single alert.

Water Detector, Non-contact water level, temperature, voltage, and A/C powered Water Level alerts are sent continuously, subject to the following limitations: