Re: Mailing list is being Spam Filtered by O-365
From headers:
Received: from BL0GCC02FT014.eop-gcc02.prod.protection.outlook.com (2a01:111:f400:7d05::209) by CYXPR09CA0010.outlook.office365.com (2603:10b6:930:d4::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6319.25 via Frontend Transport; Thu, 20 Apr 2023 11:49:06 +0000 Authentication-Results: spf=softfail (sender IP is 63.88.93.251) smtp.mailfrom=open-xchange.com; dkim=fail (signature did not verify) header.d=open-xchange.com;dmarc=fail action=oreject header.from=open-xchange.com;compauth=none reason=452 Received-SPF: SoftFail (protection.outlook.com: domain of transitioning open-xchange.com discourages use of 63.88.93.251 as permitted sender)
From: Aki Tuomi <aki.tuomi@open-xchange.com> Date: Thursday, April 20, 2023 at 07:49 Subject: [EXTERNAL] Re: Mailing list is being Spam Filtered by O-365
On 20/04/2023 14:18 EEST White, Daniel E. (GSFC-770.0)[AEGIS] via dovecot <dovecot@dovecot.org<mailto:dovecot@dovecot.org>> wrote:
Is there any chance that SPF and DKIM records could be added to appear in the headers ?
The gubba-mint folks are getting extremely medieval about email security.
Um? Those already are added? Or what do you mean?
Aki
On 20-04-2023 14:05, White, Daniel E. (GSFC-770.0)[AEGIS] via dovecot wrote:
Wietse Venema gave this answer on the same question on the postfix mailinglist:
" The list server adds its own DKIM-Signature: on behalf of the domain postfix.org, AND it adds ARC headers and Authentication-Results: for the message as received before modiification and redistribution.
However it does NOT remove existing DKIM-Signature: headers that are no longer matching header and body content. "
I would guess the same applies for this list.
- Kees.
Kees van Vloten skrev den 2023-04-20 17:52:
I would guess the same applies for this list.
ARC-Authentication-Results i=1; talvi.dovecot.org; dkim=pass header.d=gmail.com header.s=20221208 header.b=lWjGikqM; spf=pass (talvi.dovecot.org: domain of keesvanvloten@gmail.com designates 2a00:1450:4864:20::62f as permitted sender) smtp.mailfrom=keesvanvloten@gmail.com; dmarc=pass (policy=none) header.from=gmail.com
why not see this header ?
in my spamassassin authres i have added talvi.dovecot.org to trusted signer
the original dkim is just still breaked :/
so is email in 2023 being on maillists that running mailman
participants (3)
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Benny Pedersen
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Kees van Vloten
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White, Daniel E. (GSFC-770.0)[AEGIS]