E-Mail Address Routing

Discussion in 'Installation/Configuration' started by GCCM, Apr 16, 2021.

  1. GCCM

    GCCM New Member

    Good Day Together

    I'm not sure if this Possible but i'll ask cause a customer asked if we can implement this.

    Actually we have a ISPCONFIG3 Server with ONE Fix IP. Also we installed (actually) a test Version of Exchange Server 2019.
    Now a Customer want his domain - lets call us customer.tld - with different "routing".
    For example he have different Mail Accounts:
    [email protected]
    [email protected]
    [email protected]

    Now he want to do like this:
    [email protected] --> Hosted as Exchange
    [email protected] --> Hosted as Exchange
    [email protected] --> Hosted as "Standard ISPCONFIG3" Mail

    Is this Possible? Cause i didn't found anything about this "Mail Routing" only for full Domain.
    Also i'm not sure if it's possible if both Servers are behind same IP-Address.

    Hope you understand what i mean.

    Best Regards
  2. Jesse Norell

    Jesse Norell ISPConfig Developer Staff Member ISPConfig Developer

    You can add an email address in mail routing, not just domains; I don't know if that will work for your case or not, but worth a shot.
  3. GCCM

    GCCM New Member

    Thank you.
    Recieving is now possible. That working now fine.
    But sending is still not working.
    I see, that Exchange Server is sending the Mail to Postfix but always SASL Authentification not working. I'm sure that i added on both Servers same user-name also same password (copy paste)

    Do you have also an idea how to implement it? :)
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    Does the exchange system has a fixed IP address? If yes, then it might work for you to add the IP of the exchange system in the mynetworks line in /etc/postfix/main.cf. This allows systems on that IP to send without requiring SMTP auth. I use that for several clients that have Exchange systems behind an ISPConfig server.
  5. GCCM

    GCCM New Member

    Thank you Till

    Only a Fix Internal IP Adress. Can you tell me on which parameter i need to add the IP of exchange?

    Sorry i overread about that you already answered my question. I'll give a feedback after testing.
    Last edited: Apr 19, 2021
  6. GCCM

    GCCM New Member

    Hmm.. I added but if i press on "Send" E-Mails are automaticly stored on Drafts (OWA).
    May someone have a idea about sendconnector?

    I did it like this:
    Selected a Connector Name
    Typ: Custom

    Send E-Mail to Smarthost (added the IP Address of ISPCONFIG / POSTFIX)
    i didn't check about DNS lookup cause of IP-Address

    Type: SMTP
    FQDN: *
    Cost: 1
    on FQDN a * for "any"

    and on last one i choose the Exchange Server.

    Thank you for your Time guys!

    EDIT: Fixed

    I playd a bit with the Sendconnectors. On playing there would be send the mails and saved this settings. :)
    Last edited: Apr 19, 2021

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