Not allowed to send as from different domain / recipient policy

Posted on 2009-04-21
Last Modified: 2012-06-27
Hi experts,

As of recently we added a new domain to our exchange configuration using an additional recipient policy. Naturally we contacted our providers to set up the public DNS and required MX records. Internally receiving the mail from is working fine.

The problem occurs when someone is trying to send as the new domain. Say my user account is filtered by both policies and as a result i get the following mail aliasses assigned.

----------Policy one --------------
smtp :
---------Policy two ---------------
smtp :
Now i try to send from: (using the from header in the new mail)

I receive an NDR stating the following error,
You dont have the right permissions to e-mail to the following addresses. Contact your system engineer (me :/) for more information...

anyone with any clues?
Question by:Chris_Gralike
    LVL 32

    Expert Comment

    You need to look at your IMAP service. Check your RDNS settings too
    Also refer:
    LVL 32

    Assisted Solution

    LVL 10

    Author Comment

    Hi gupnit,
    Does this actually mean that by using the microsoft MAPI (rpc) connection method there is no way for me to send mail from the additionaly added email aliasses?

    Because it does look like a Outlook misconfiguration, and not an exchange misconfiguration. i.e.

    When using telnet (after removing the sender filters)
    the following is returned. (see sniplet)

    And is received as expected in the expected mailbox....

    220 amisnt30.AMIS.local Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959 ready at  Tue, 21 Apr 2009 15:38:33 +0200
    250 ****nt30.***.local Hello []
    mail from:chris.gralike@*****
    250 2.1.0 chris.gralike@***** OK
    rcpt to:servicedesk@****.nl
    250 2.1.5 servicedesk@****.nl
    354 Start mail input; end with <CRLF>.<CRLF>
    Testing test
    testing Test
    250 2.6.0 <****NT30jbDt3HvoFOA000000f4@****nt30.****.local> Queued mail for delivery
    451 Timeout waiting for client input
    Connection to host lost.

    Open in new window

    LVL 65

    Accepted Solution

    As far as Exchange/Outlook is concerned, all users only have one email address - the default one. All email the user sends goes out as that address. There is no functionality in Exchange to allow the user to select which address they can send email "as".

    You can do so with SMTP/telnet tests because you can put anything you like as the From field. As long as the recipient is valid on the server, Exchange will accept it.

    There are various ways to work with this issue
    - multiple accounts
    - dummy POP3 configurations
    - third party tools.

    I have outlined the main options here:

    LVL 10

    Author Comment

    Thanks for clearing that up.

    This means that this issues has become a functional question instead of a technical one. Reading the suggested solutions using the IMAP4 virtual server just isnt going to work for us, and i think will suggest the multiple accounts sollution with the send as, send on behave permissions set.

    Thanks again for the prompt replies :-)
    LVL 10

    Author Closing Comment

    Thanks all, mstha received more points because its a 'cleaner' solution using mulitple accounts (wich was our idea too) just needed to know if it was a technical (conf) problem or functional one. It seems to be the functional one...

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