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SMTP using port 587

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  • SMTP using port 587

    My SMTP client is attempting to connect to port 587 when sending an email. How do I make it connect on port 25?

  • #2
    My first guess is that your SMTP settings specify a non-standard port. In IBM Navigator for i go Network->Servers->TCP/IP Servers. That will give you a list of servers. Right-click SMTP->Properties. On the General page, check the Mail router.

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    • #3
      587 isn't non-standard. See here: https://www.mailgun.com/blog/which-s...ts-25-465-587/

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      • jtaylor___
        jtaylor___ commented
        Editing a comment
        I never knew that. Thank you

    • #4
      I have learned that the environment variable QIBM_SMTP_SERVER_PORT is what determines the outgoing port number.

      Thanks for all your replies.

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