Solved e-mail settings - solved

Discussion in 'Windows' started by Ton van Gaalen, Dec 27, 2016.

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  1. Ton van Gaalen

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    Just installed 3CX phone system v15.0.0 on Windows10. Installation went smooth. All appears to be working without a glitch. Except for my e-mail settings. I just cannot get e-mail to work. I am using a standard gmail account without 2-factor authentication. If I test with:

    • smtp.gmail.com => 3CX states "invalid external certificate"
    • smtp.gmail.com:587 => the port number 587 disappears from the settings (!??) and 3CX states "invalid external certificate"
    • smtp/gmail.com:465 => the port number is stored in the settings as expected but 3CX states "Operation cancelled"
    I am stuck; anybody who can help?
     
  2. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    Hello there,

    Please make sure that you are using a supported browser (try google chrome) and try accessing your gmail account from the PBX machine so that gmail can authenticate your machine. You will get a warning email in our gmail so you can authenticate your machine.
    Port is not needed from what i tried.
    What certificate did you use to install the PBX?
     
  3. GrimmSh0t

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    I am getting the same error, during the installations I used whichever certificate was available. Meaning I did not import my own certificate
     
  4. Ton van Gaalen

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    I am already using Chrome, so that is not the issue. I used the default certificate provided by the 3CX installer. I believe 3CX uses the "Let's encrypt" service to generate a certificate on demand. Nothing out of the ordinary I think, so still looking for help on this one.
     
  5. Ton van Gaalen

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    It gets more interesting. If I run a firewall check from the dashboard, the check routine disables/enables the 3CX services as part of the process. To my surprise I received a "Stopped services" notification e-mail. It appears the SMTP mail setup is correct, but parts of 3CX still cannot send out an e-mail. What I want to achieve is send out a welcome e-mail for a new extension (which currently does not work).

    I am lost, so any help is appreciated.
     
  6. GrimmSh0t

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    Good test, I just ran the same test and received the same results.
    I then tried to send myself a welcome email with no luck - still unsure what's going on.
     
  7. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    Please make sure that your windows are fully up to date with windows updates and try again
     
  8. GrimmSh0t

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    Windows is up to date...
     
  9. Ton van Gaalen

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    Windows is up to date.
     
  10. Platonik

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    Same issue but using Google Cloud hosting instead. Tried everything mentioned above..
     
  11. Ton van Gaalen

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    Ok, I spent several hours troubleshooting. Learned a lot using openssl on the command prompt. In the mail settings screen I changed my mail server to smtp.gmail.com:25 (so I just added port number :25). Mails are now sent and received as expected. Give it a try and let us know if this works for you as well.
     
  12. Ton van Gaalen

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    Ok, now I am really losing it. Mail is not sent anymore and error is back to "invalid remote certidficate". I could really use some help as this is costing me too much time now.
     
  13. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    i have sent you a p.m.
     
  14. Ton van Gaalen

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    Ok, root cause determined. I use avast mail shield and this somehow interrupts the 3CX mail server communication. Disabled Avast mail shield and set up the mail server in 3CX with smtp.gmail.com (no port #). Now works as expected. Rather obvious; I overlooked it. Solved with the help of 3CX support - Yiannish_3CX. Thx a million.
     
    agp likes this.
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