Re: BATV mangling email address

Dane Foster <dane@newmachinefutures.nz> Wed, 16 September 2026 23:18 UTC

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From: Dane Foster <dane@newmachinefutures.nz>
Date: Wed, 16 Sep 2026 18:18:02 -0500
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Subject: Re: BATV mangling email address
To: Bron Gondwana <brong=40fastmailteam.com@dmarc.ietf.org>
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 Catching this thread up here,

I can confirm we had a bug on our side of things, and mea culpa. This
likely affected Outlook users more so than anyone else, but the fix is in
place now and should sort it out.

For those following along, the code for all of the programatic side of
things is available on github,

https://github.com/ietf-tools/container-rewriter
https://github.com/ietf-tools/postconfirm
https://github.com/ietf-tools/container-postfix

While the config info is not included generally, im more than happy to
provide and discuss off-list

Appreciate the patience and info provided to track down and get a
resolution in place.



On 17 Sep 2026 at 09:51:14, Bron Gondwana <brong=
40fastmailteam.com@dmarc.ietf.org> wrote:

> That one seems fine:
>
> The from address is quoted correctly.
>
> And the raw headers are good too:
>
> That said, the earlier message to which I replied also seems to have come
> OK over the wire:
>
>
> Which does indeed suggest that the IETF's mail flow processing right now
> is losing the quoting around the name and re-inserting it somewhere without
> quoting, causing a later parser to split it on the comma.
>
> I don't know how much of this is source available to go look at it
> ourselves, or how much we're dependent on the tools team fixing it.
>
> Bron.
>
> On Wed, Sep 16, 2026, at 16:56, Rob Sayre wrote:
>
> Hi, sorry for the repeat, but one just came through:
>
> https://mailarchive.ietf.org/arch/msg/ietf/l2gTePu03Hvx5S-8kmsDIGBD1Yo/
>
> That's the mangled web archive that shows the problem.
>
> thanks,
> Rob
>
>
> On Wed, Sep 16, 2026 at 1:48 PM Rob Sayre <sayrer@gmail.com> wrote:
>
> Hi,
>
> Bron Gondwana <brong@fastmailteam.com> wrote:
> > and this is happening, then the IETF system actually has a protocol
> compliance bug
>
> It absolutely does. It does not handle messages from Outlook correctly.
>
> I've complained about this before. It made it unclear whether I wrote
> something or the Outlook-using respondent wrote something. I use GMail, and
> it does seem to get that right. Maybe one for tools-discuss.
>
> thanks,
> Rob
>
>
> --
>   Bron Gondwana, CEO, Fastmail Pty Ltd / Fastmail US LLC
>   brong@fastmailteam.com
>
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