[LinuxBIOS] [ADMIN] Mail headers: random variations?

[Carl-Daniel Hailfinger]

Hi,

(yes, I read mail headers.) I have noticed that mails I receive via the
list can have two differing Return-Paths, depending on some random
circumstances. Both of the following header lines have been seen for
mails sent 3 seconds after each other, differing in amost nothing except
the Return-Path:

Return-Path:
<linuxbios-bounces+c-d.hailfinger.devel.2006=gmx.net at linuxbios.org>
Return-Path: <linuxbios-bounces at linuxbios.org>

The Return-Path variation is independent of the original sender, I have
seen it for autogenerated commit mails as well as mails for every single
person I checked.

Is anybody else seeing this?

Regards,
Carl-Daniel
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