How to Setup Postfix Mail Server (SMTP) using null-client Configuration – Part 9

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Gabriel Cánepa

Gabriel Cánepa is a GNU/Linux sysadmin and web developer from Villa Mercedes, San Luis, Argentina. He works for a worldwide leading consumer product company and takes great pleasure in using FOSS tools to increase productivity in all areas of his daily work.

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4 Responses

  1. gajendran says:

    Hi, Thanks for great useful post, I need one help, I am using five IP’s.

    Where as when i sent mail from each ip but it shows originating IP : X.X.X.250 only, which means first ip. How to resolve this. where to do..

  2. vikram kumar chakrawarti says:

    postfix null client

  3. Tomas says:

    Just a small thing, you do not need to open the SMTP port on a Postfix null-client – a null-client cannot receive emails from outside, therefore opening the port isn’t required.

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