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  • Multiple Recv From Servers

    Is it possible to setup Exchange 2003 with different SMTP connectors so the Recv From info in the header will have the same server name as the domain they are sending from.

    What we have here is the greylisting issue and the "glitchretryseconds" registry seemed to have taken care of it, but i want to be thorough and cover all of my bases.

    If the server is server.domainA.com and the user is [email protected] then it all goes OK. But we have a second domain on the server so some messages are server.domainA.com and the user is [email protected] and if greylisting is on then this message is greylisted. We would like to avoid the trouble complelety by having [email protected] have their messages appear as if they are coming from their own server, without having to buy another physical box.

    Thanks for your help,
    Bryan

  • #2
    Re: Multiple Recv From Servers

    Exchange cannot route based on the sender, only on the recipient.
    Having the same name as the email address will not help in anyway at all with email delivery. The large email service providers do not do that, certainly not any of the hosted Exchange providers.
    You just need to ensure that the server is configured correctly, with the DNS, reverse DNS and SMTP banner matching.

    Saying that, even if you could change the above, it wouldn't help with the greylisting bug. Greylisting only looks at the IP address the email message is coming from.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

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    • #3
      Re: Multiple Recv From Servers

      But if it was possible to send messages to a specific SMTP server you could get past the greylist issue. Because when you setup a virtual SMTP server you need to assign an IP address.

      You can then setup 2 different NAT's with different MX records and so the IP would matchup with the FQDN and the senders email, therefore automatically whitelisting the email.

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      • #4
        Re: Multiple Recv From Servers

        Greylisting doesn't work on the host name. It works on the IP address.
        Therefore having multiple SMTP IP addresses is not the fix for the greylisting bug.

        Simon.
        --
        Simon Butler
        Exchange MVP

        Blog: http://blog.sembee.co.uk/
        More Exchange Content: http://exchange.sembee.info/
        Exchange Resources List: http://exbpa.com/
        In the UK? Hire me: http://www.sembee.co.uk/

        Sembee is a registered trademark, used here with permission.

        Comment

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