SMTP (-1) error: failed while connecting to the server from Roundcube

Discussion in 'ISPConfig 3 Priority Support' started by albertf, Oct 6, 2019.

  1. albertf

    albertf Member

    I have never done this and I will never do this
    Sorry maybe my question was unclear
    I will host with my Vps and Ispconfig, 15 domain name, each domain name have their own dedicated IP and normally the IP of my server don't need to be used for the domain name.
    Actually, when I'm sending emails with my domains names, my config send all email with the IP of and not with the Ip of my domain name.
    That's why I asked
    Which return this if I send an email
    • IP: IP of my VPS
    • HELO:
    • rDNS: IP of my VPS
    Last edited: Oct 11, 2019
  2. albertf

    albertf Member

    Please just answer me, just yes or not can be ok.
    With ISPConfig can I send email and get as a sender :
    • IP: 123.456.789 (dedicated Ip of my domain name)
    • HELO:
    • rDNS:
    Or I can only send email like that :
    • IP: IP of
    • HELO:
    • rDNS:
  3. till

    till Super Moderator Staff Member ISPConfig Developer

    Using a dedicated IP for each domain is possible in postfix, but if you want to use it, then you have to configure that manually in postfix for each domain.
  4. albertf

    albertf Member

    Thank you for your clear answer
    I do not have your skills, mine are not enough to achieve this without help.
    I started reading the documentation, but it will take me too long to find the right method.
    I do not intend to make you waste your time with more explanations, maybe you have some links with tutorials that could help me learn how to use dedicated IP with Postfix ?

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