https://gitlab.com/CentOS/infra/tracker/-/issues/1710

Mail to addreses with strict DMARC enforcement via centos-devel&lists.centos.org are getting Spam-filtered. Example headers:

```
ARC-Seal: i=1; s=201903; d=dkim.mimecast.com; t=1750233470; a=rsa-sha256; cv=none; b=o9L9pvD9H/DutjYVMXVkgE8+kBgRs+F+TlUxYySr622yYGU5GEZhIsX8aqGRA422Kuzev2 cuFTFb1BQrROagLyMoeXMlZs60eO0tiWwKOdCI5E8pahhGFpAy2F7cxQlLXxlvmLfkuWi1 0Nq1hwafVMkfHowx+Ans1h+xviBcSCg0O1sQ7JGSis0An3Us3ztoVVaY+UQgWzZDrLHy2n WI3HF3tBFYGF5kOdKeebgJA1ezcltqDMzktoYN7HnLENhqaf8BwKzroDnnVmRl9UFe4blA tHT5ZwBi9XJi0FWZygZcjYKF7/O3+Z9F9zR2pH6CWnsgbtpfgLMPpM4gzBl3EA==
ARC-Authentication-Results: i=1; relay.mimecast.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=hotmail.com (policy=none); spf=pass (relay.mimecast.com: domain of devel-bounces&lists.centos.org designates 8.43.84.214 as permitted sender) smtp.mailfrom=devel-bounces&lists.centos.org
Authentication-Results: relay.mimecast.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=hotmail.com (policy=none); spf=pass (relay.mimecast.com: domain of devel-bounces&lists.centos.org designates 8.43.84.214 as permitted sender) smtp.mailfrom=devel-bounces&lists.centos.org
Received: from mail.centos.org (mmx1.rdu2.centos.org [8.43.84.214]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-522-eYb6S7ZrPM-G5qE-KELCdg-1; Wed, 18 Jun 2025 03:57:46 -0400
```

_This issue ticket was originally created [here](https://pagure.io/centos-infra/issue/1710) on a Pagure repository,
[**centos-infra**](https://pagure.io/centos-infra) by [**Joe Orton**](https://accounts.fedoraproject.org/user/jorton) on
[**Tue Jul 1 13:44:03 2025** UTC](https://savvytime.com/converter/utc/jul-01-2025/13-44)._

_This issue ticket was automatically created by the
[**Pagure Exporter**](https://github.com/gridhead/pagure-exporter)._