email bouncebacks

Discussion in 'HOWTO-Related Questions' started by cortexx, Dec 9, 2008.

  1. cortexx

    cortexx New Member

    ubuntu Feisty fawn perfect server setup with ispconfig.

    we are suffering from "no such user" bounce bac spams .

    how do we configure the mail server to ignore email addresses that dont exist on our server without sending back a reply ?


  2. cortexx

    cortexx New Member

    Bump ? :(

    sorry to be impatient but we are suffering around 100,000 backscatter instances a day at the moment and have been contacted by our ISP to do something about it or they will block ports so that our email servers wont function until we can prove we have remedied the situation.
  3. falko

    falko Super Moderator ISPConfig Developer

  4. cortexx

    cortexx New Member

    thanks for the response although looking at the link i have a hard time understanding how to apply it with my level of linux knowledge safely to our server .

    Is there any kind of walk through on this site that can improve the security of postfix that i can use? or do you have plans in the near future to release such a walk throught ?

    It seems that over the last month there has been an explosion of this type of spam taking advantage of mailservers such as ours.


    Cort :confused:
  5. cortexx

    cortexx New Member

    bump ? :cool:

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