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ptc-62921441-Visitor
1-Visitor
November 5, 2014
Question

Issue with Mail Server Thing

Hello,


I used to be able to send emails from my Thingworx server using a Mail Server thing, however recently I have been receiving the following error:


"Could not connect to SMTP host: **********, port: 25]"


I can create a telnet connection to the mail server over port 25 and can ping the mail server as well but for some reason it seems Thingworx cannot connect to it. 


Again, it used to work fine, nothing has changed on the configuration page for the Mail Server thing but now it cannot connect anymore.



    7 replies

    paic1-Visitor
    1-Visitor
    November 5, 2014

    Hi Michael, most likely your Network is blocking that outgoing message. Please check with your IT.

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    ptc-62921441-VisitorAuthor
    1-Visitor
    November 6, 2014

    Pai,

    Does Thingworx send a type of authentication when it tries to send an email? I am just trying to figure out what the difference would be between sending an email from a command prompt versus through Thingworx. Our mail server does not require a Username and Password and our IT department thinks that Thingworx might be trying to use one causing it to get the "Could not connect to SMTP host: *****, port: 25" error.


    Thank you,



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    ptc-62921441-VisitorAuthor
    1-Visitor
    November 5, 2014

    Pai,


    I don't believe it is because the Network is blocking the outgoing message because from the same server Thingworx is hosted on I can ping the Mail Server and I used a telnet command prompt to send an email through the Mail Server from the same server Thingworx is hosted on.



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    VladimirRosu_11662719-Tanzanite
    19-Tanzanite
    November 6, 2014

    Hi Michael,

    While the message seems to be generated by the inability of TW to connect to your email server, please check that the account ID / username Field is empty in the Configuration page. Only in this case the Mail Thing will connect to the SMTP server with no authentication.
    If the Username field has something in it, the Mail Thing will try to connect with authentication.

    BR,
    Vladimir



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    ptc-62921441-VisitorAuthor
    1-Visitor
    November 6, 2014

    Vladimir,


    Thank you for the response, I do have the Username Field empty however I am still receiving the error. I can successfully send emails from the computer via a command prompt but Thingworx keeps giving this error.



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    VladimirRosu_11662719-Tanzanite
    19-Tanzanite
    November 7, 2014

    Just looked in the error in the first post, in the configuration of the Mail Thing did you put DNS name of local server or numerical IP address?
    Just in case, try with both, including also the 127.0.0.1.

    BR,
    Vladimir



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