Postfix mailbox and redirect ?

Discussion in 'ISPConfig 3 Priority Support' started by elmacus, Dec 5, 2019.

  1. elmacus

    elmacus Active Member HowtoForge Supporter

    I have a custumer that uses Postfix redirect to his Exchange for incoming emails, but also wants to send outgoing via same SMTP-server, not from their Exchange. So i test create a Email account for sending, but didnt work. (sorry no log at the moment).
    Is that possible in ispconfig ? Or is it even possible at all manually in Postfix?
    I had to use another SMTP server for this to work.
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    You can do this by creating a mailbox in ISPConfig, but you have to use a different domain name and as you can't sue his domain when it#s forwarded and the option to enforce that the from address of emails must match the mailbox that is used for sending must be off.

    If he uses a fixed IP for his exchange system, then the easiest way is to add this IP to mynetworks in postfix to allow sending from that IP without authentication.
  3. elmacus

    elmacus Active Member HowtoForge Supporter

    Thanks, ofc i didnt think of your simple solutions ;-)
    Suggestion then, make admin setting for changing postfix mynetworks.

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