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It seems that I can turn on Delivery Status notifications for all users, or just users on the local network. Is there a way to turn DSN on for our employees only, regardless of where they are? ie. If an employee sends mail out (with SASL authentication) they get a bounce/defer/success notice, but other people sending mail to our system don't?

The man page says:

Use the smtpd_discard_ehlo_keyword_address_maps feature if you wish to allow DSN requests from trusted clients but not from random strangers

And gives the example:

    smtpd_discard_ehlo_keyword_address_maps = 

    # Allow DSN requests from local subnet only      silent-discard           silent-discard, dsn
    ::/0                silent-discard, dsn

But I don't want to base it on subnet, I want to enable DSN for either A. users who authenticate with SASL -OR- B. users who have a mailbox on the system (our employees)

Is there a way to do this?

Ubuntu 10.04/Postfix 2.7.0

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up vote 0 down vote accepted

Unfortunately, I don' think this is possible (yet).

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