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List: postfix-users
Subject: Re: Validation DMARC
From: "Wesley Peng" <wesley () thepeng ! eu>
Date: 2019-11-23 11:35:12
Message-ID: a48c58e5-776d-417e-b593-a2e6154e740f () www ! fastmail ! com
[Download RAW message or body]
I'm not sure , you may refer this discussion,
https://serverfault.com/questions/779730/why-dont-my-domains-messages-to-a-google-group-get-their-headers-rewritten-so
On Sat, Nov 23, 2019, at 7:23 PM, Jaroslaw Rafa wrote:
> Dnia 23.11.2019 o godz. 19:10:51 Wesley Peng pisze:
> >
> > if you have used a mail.ru email for google groups, when you posted
> > message to group, it will replace From header with the list address.
>
> Does it re-sign the message then? Because replacing the From: header would
> break DKIM, as this header is always signed...
> --
> Regards,
> Jaroslaw Rafa
> raj@rafa.eu.org
> --
> "In a million years, when kids go to school, they're gonna know: once there
> was a Hushpuppy, and she lived with her daddy in the Bathtub."
>
[Attachment #3 (text/html)]
<!DOCTYPE html><html><head><title></title><style \
type="text/css">p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div>I'm not \
sure , you may refer this discussion,<br></div><div><br></div><div><a \
href="https://serverfault.com/questions/779730/why-dont-my-domains-messages-to-a-googl \
e-group-get-their-headers-rewritten-so">https://serverfault.com/questions/779730/why-d \
ont-my-domains-messages-to-a-google-group-get-their-headers-rewritten-so</a><br></div><div><br></div><div><br></div><div>On \
Sat, Nov 23, 2019, at 7:23 PM, Jaroslaw Rafa wrote:<br></div><blockquote type="cite" \
id="qt"><div>Dnia 23.11.2019 o godz. 19:10:51 Wesley Peng \
pisze:<br></div><div>> <br></div><div>> if you have used a mail.ru email \
for google groups, when you posted<br></div><div>> message to group, it will \
replace From header with the list address.<br></div><div><br></div><div>Does it \
re-sign the message then? Because replacing the From: header \
would<br></div><div>break DKIM, as this header is always \
signed...<br></div><div>-- <br></div><div>Regards,<br></div><div> \
Jaroslaw Rafa<br></div><div> \
raj@rafa.eu.org<br></div><div>--<br></div><div>"In a million years, when kids go to \
school, they're gonna know: once there<br></div><div>was a Hushpuppy, and she lived \
with her daddy in the \
Bathtub."<br></div><div><br></div></blockquote><div><br></div></body></html>
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