Email message headers modified

tundasrl

Verified User
Joined
May 17, 2008
Messages
53
Hello, anyone can help me?
A customer has a mailbox "[email protected]" and configured a forwarder "[email protected]" -> "[email protected]"
The mailbox has a vacation message.
Now when he sends a mail to the mailbox everything is ok and the vacation message is triggered, but when he writes to the alias the message header are modified and the vacation message does not reach back to the sender.
These are samples of the modified and unmodified headers.

message sent from [email protected] to [email protected] (Return-Path and envelope-from are wrong)
Code:
Return-Path: <[email protected]>
Delivered-To: [email protected]
Received: from xxxxxxxxxxxxxxxxxxxxxxxx
    by xxxxxxxxxxxxxxxxxxxxxxxx with LMTP
    id YPtBDfbJ2lyQLgAA5DQULQ
    (envelope-from <[email protected]>)
    for <[email protected]>; Tue, 14 May 2019 16:00:22 +0200
Return-path: <[email protected]>
Envelope-to: [email protected]
...

message sent from [email protected] to [email protected] (Return-Path and envelope-from are correct)
Code:
Return-Path: <[email protected]>
Delivered-To: [email protected]
Received: from xxxxxxxxxxxxxxxxxxxxxxxx
    by xxxxxxxxxxxxxxxxxxxxxxxx with LMTP
    id iIswBpnJ2lyQLgAA5DQULQ
    (envelope-from <[email protected]>)
    for <[email protected]>; Tue, 14 May 2019 15:58:49 +0200
Return-path: <[email protected]>
Envelope-to: [email protected]
...

Thanks to everyone
Tunda IT Srl
 
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