• Hi, I'm trying to get an email notification set up for one of my sensors. I'm experimenting (on my desk at the moment!) with a HC-SR04 sensor so that I can measure water level in a tank. The sensor is working fine, and sending consistent readings to My Controller via my Serial Gateway.

    I would like it to send me an email when the water level reaches a threshold of "x"cm. I've set this up in Rules with Condition Type "threshold", trigger when value from sensor is >=50cm. Then under Operations, I've asked it to email me this.

    I assume I need to set up the email account, SMTP etc under Settings, which I've tried, but I keep getting a "400: Bad Request" when I test the connection. I'm trying to use my gmail account with the following settings:

    Port : 465
    From address : my gmail
    SSL Enabled
    Use SSL chosen
    My username and password.

    Any help appreciated again.

  • @mtbhuw Your setup should be looking as follows,

    Do you see any warning message on your email? You have to allow this device.

  • Hi, yes that's how I have it set up in My Controller. I've also set gmail to allow "less secure apps". I was getting the "400: Bad Request" message but as I type this and retrying the Test Connection, it seems to be working now. I'll try it out....


  • Hi, MyController (1.0.0) is a great job:-), works with smartsleep very well so far.
    I am trying to set up a gmail notification, does not work with the settings above however.
    When I press the test button I get the 400 error ... the respective gmail account is configured for low security.
    Has google changed something in between?
    Is gmail still working for you guys?
    Thanks ...

  • Just need to add: I am running Mycontroller on Windows 10 for now, could that be the reason I'm not able to get gmail notification working?

  • @iahim67 Can you list complete error details?

  • I get this when I hit the "test connection" button



  • @iahim67 Can you test with SMTP port as 465 and Use SSL and user name with @gmail.com

  • I did that already with the same result ... then I tried STARTTLS & 587.

  • MOD


    Are you able to "ping" the server from the command line?

    You should see the output like below

    # ping smtp.gmail.com
    PING gmail-smtp-msa.l.google.com ( 56(84) bytes of data.
    64 bytes from icmp_seq=1 ttl=44 time=13.4 ms
    64 bytes from icmp_seq=2 ttl=44 time=15.7 ms
    64 bytes from icmp_seq=3 ttl=44 time=104 ms
    64 bytes from icmp_seq=4 ttl=44 time=73.2 ms
    64 bytes from icmp_seq=5 ttl=44 time=41.1 ms
    64 bytes from icmp_seq=6 ttl=44 time=37.7 ms
    64 bytes from icmp_seq=7 ttl=44 time=50.8 ms
    --- gmail-smtp-msa.l.google.com ping statistics ---
    7 packets transmitted, 7 received, 0% packet loss, time 6009ms
    rtt min/avg/max/mdev = 13.407/48.175/104.992/29.960 ms

    Can you check if there are no spaces in the servername field in mycontroller itself?

    Port 587 is the TLS port, try to disable SSL and use port 25
    does that work?

  • Yes, seems I am able to ping the server:


  • MOD


    okay that is good so we know we can at least connect to the server.

    How about disable SSL and use port 25? does that work?

  • same error:


  • One more thing to note, perhaps it helps: I am using Domoticz in parallel and I can send email notifications from Domoticz, the following does work:


  • @iahim67 can you investigate on network response?

    right click on MyController page, select Inspect also check mycontrollor.log is there any error?


  • I get this:


  • Did this get resolved? I am having the same issue now.

  • @skywatch I do not see any issue with email setup. Are you getting 400? can you post mycontroller.log when you perform this action?

  • @jkandasa THanks - The pi mycontroller is running on has ssmtp installed and this works for sending cron messages etc.
    I tried to ping my isp mail server with no response (but also got no response from a win10 machine either) yet mails are working as far as I can tell.
    I have to get Mum from the hospital now so will try again later when I have time.

  • @skywatch Emails working fine for me now 🙂

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