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Send SMTP mail with EnableSsl=true RRS feed

  • Question

  • User1310055179 posted

    Hi,

    I need to send email using SMTP, according to user's parameters (email address, password, host, port).

    I wrote some backend code to test it.

    When I use the following code:

    smtp.EnableSsl = false;
    

    I am able to send the mail using port 25.

    When I use the following code:

    smtp.EnableSsl = true;
    

    I am supposed to be able to send the email using port 587.

    I tried entering my Gmail email and I received an email alert saying an attempt to use my email address by external application was blocked.

    I know I need to change something in  Gmail settings in order to allow the application to use my Gmail as the sender email, however, I only used my Gmail for testing.

    I actually need to use the Outlook Exchange server email to send my application.

    What settings do I need to change in order for outlook not to block my emails?

    In additions, what are the security risks in sending my emails with the following code:

    smtp.EnableSsl = false;

    My application can be installed on Internet or Intranet.

    Thanks

    Tuesday, December 10, 2019 10:47 AM

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