Mailcow-dockerized: Null 'From' when using SOGo filter to send reject msg

[lwl12]

it just has
From: Mail Delivery Subsystem [e-mail] Info（After DATA）
but not truth From （before SMTP 'DATA' command）

[lwl12]

So this caused some mail system reject my rejection mail. Funny :-)

[andryyy]

I heard it before, but it is totally fine regarding some chapter in RFC2298 - can't look it up, I'm on my mobile at the moment). Correct me if I'm wrong! :-)

Am 25.03.2017 um 17:41 schrieb liwanglin12 [e-mail]:

So this caused some mail system reject my reject mail. Funny :-)

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[kn007]

Like this?

RFC2298 Page 7

 The envelope sender address (i.e., SMTP MAIL FROM) of the MDN MUST be
   null (<>), specifying that no Delivery Status Notification messages
   or other messages indicating successful or unsuccessful delivery are
   to be sent in response to an MDN.

[lwl12]

OK,that's means our response is correct, but others system not?
Well, sounds coolヾ(●゜ⅴ゜)ﾉThanks for help

[andryyy]

Thanks!