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Is it possible to have TLS setup for port 25 and 587 for SMTP at same time?

Discussion in 'SmarterMail' started by bgarrant, Apr 5, 2012.

  1. bgarrant

    bgarrant New Member

    I have some clients that need to use port 587 instead of port 25 due to ISP restrictions. I also have some clients that use TLS connections on port 25, and now I have a client that needs to connect on port 587 for TLS. Can I have 3 entries in the Settings -> Advanced Settings -> SSL page? I already have it working correctly for

    Type: SSL SMTP 465, POP 995, IMAP 993
    Type TLS SMTP 25, POP 110, IMAP 143

    Wondering if I can add a third line for:

    Type TLS SMTP 587, POP 110, IMAP 143

    Will this cause any issues? Should I use dummy ports for POP and IMAP so they are different from other entry?

    Any help is greatly appreciated. I am using SM Enterprise 6.9
  2. DXD

    DXD Product Expert

    I thought TLS used it's own port.
  3. chicagonettech

    chicagonettech Product Expert

    Here is what we run for our secure smartermail server:

    You can ignore the activesync ports - they are part of an experiment we are working with and not all shown.

    Note that TLS will downgrade to SSL where the connection does not support TLS. You do not have to map both SSL and TLS ports when you are using TLS.


    Here is how they are bound to the IP ADDRESS which runs SSL/TLS - again, disregard the activesync and SyncML ports listed below as they have nothing to do with SSL/TLS


    For more information on SmarterMail and TLS, see:

    Configure SSL/TLS to secure SmarterMail: http://portal.smartertools.com/KB/a...-to-secure-smartermail.aspx?KBSearchID=445089, and,

    Enable TLS for outgoing messages: http://portal.smartertools.com/KB/a2076/enable-tls-for-outgoing-messages.aspx?KBSearchID=445089
  4. bgarrant

    bgarrant New Member

    I am using SM Enterprise 6.9 which is a bit different. There is no Ports section. There is a page under Security -> Advanced Settings -> SSL and it looks like this. Can I more than the two lines? I am trying to make it so 587 will also work under TLS aling with port 25.


  5. chicagonettech

    chicagonettech Product Expert

    Then follow this KB article, but do not expect any support because you are five versions behind and only the last two versions are supported:


    I cannot help you further, either.
  6. bgarrant

    bgarrant New Member

    Thank you. I already have it setup and working. Just wondering if there is a limit on how many entries I can have. Thanks again for your advice.