Securing Postfix?

Discussion in 'Server Operation' started by VanDaMe, Oct 31, 2008.

  1. VanDaMe

    VanDaMe New Member

    is firewall causing this issue?

    I tried the same method on other server (which is running Ubuntu), all working very well.


    I already open port 25 for this smtp.
    But still getting error after UNKNOWN
  2. falko

    falko Super Moderator ISPConfig Developer

    I don't think this is the problem, but to go sure, you can disable the firewall and try again.
  3. VanDaMe

    VanDaMe New Member

    it's not posibble to disable the firewall. Because it was build on a cisco router.

    But as you know, we just need to open port 25 to do smtp right?
    Maybe is there any other suggestion?
  4. falko

    falko Super Moderator ISPConfig Developer

    Yes, that's right.

    I don't have any other ideas. :(
  5. VanDaMe

    VanDaMe New Member

    ok thank's for your help :)

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