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content/blog/mail_server_alpine_postfix_dovecot_tutorial.md: publish and minor changes (formatting and id of a header)

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revsuine 2024-11-25 01:46:22 +00:00
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content/blog/mail_server_alpine_postfix_dovecot_tutorial/index.md
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@ -1,6 +1,6 @@
+++ +++
date = '2024-11-19T16:29:01Z' date = '2024-11-24T16:29:01Z'
draft = true draft = false
title = 'How to Set up a Mail Server on Alpine Linux with Postfix and Dovecot' title = 'How to Set up a Mail Server on Alpine Linux with Postfix and Dovecot'
tags = ['mail server', 'alpine linux', 'postfix', 'dovecot'] tags = ['mail server', 'alpine linux', 'postfix', 'dovecot']
+++ +++
@ -1368,7 +1368,7 @@ The `fo` tag indicates when you would like to receive reports. The options are:
</tr> </tr>
</table> </table>
### OpenDMARC[^spf_processing_redundancy] ### OpenDMARC[^spf_processing_redundancy] {#opendmarc}
We can use software called OpenDMARC to enforce DMARC policies for incoming mail. OpenDMARC is another milter. Let's We can use software called OpenDMARC to enforce DMARC policies for incoming mail. OpenDMARC is another milter. Let's
install it and enable its service: install it and enable its service:
@ -1479,14 +1479,12 @@ And when you receive emails from a legitimate source that implements DMARC, you
your emails: your emails:
<pre id="double-spf-headers"> <pre id="double-spf-headers">
<code> <code>Received-SPF: pass (protonmail.com: Sender is authorized to use 'revsuine@protonmail.com' in 'mfrom' identity (mechanism 'include:_spf.protonmail.ch' matched)) receiver=master.revsuine.xyz; identity=mailfrom; envelope-from="revsuine@protonmail.com"; helo=mail-40130.protonmail.ch; client-ip=185.70.40.130
Received-SPF: pass (protonmail.com: Sender is authorized to use 'revsuine@protonmail.com' in 'mfrom' identity (mechanism 'include:_spf.protonmail.ch' matched)) receiver=master.revsuine.xyz; identity=mailfrom; envelope-from="revsuine@protonmail.com"; helo=mail-40130.protonmail.ch; client-ip=185.70.40.130
DMARC-Filter: OpenDMARC Filter v1.4.2 master.revsuine.xyz 88CFF1288D1 DMARC-Filter: OpenDMARC Filter v1.4.2 master.revsuine.xyz 88CFF1288D1
Authentication-Results: OpenDMARC; dmarc=pass (p=quarantine dis=none) header.from=protonmail.com Authentication-Results: OpenDMARC; dmarc=pass (p=quarantine dis=none) header.from=protonmail.com
Authentication-Results: OpenDMARC; spf=pass smtp.mailfrom=protonmail.com Authentication-Results: OpenDMARC; spf=pass smtp.mailfrom=protonmail.com
Authentication-Results: master.revsuine.xyz; Authentication-Results: master.revsuine.xyz;
dkim=pass (2048-bit key; secure) header.d=protonmail.com header.i=@protonmail.com header.a=rsa-sha256 header.s=protonmail3 header.b=nc4YWVM/ dkim=pass (2048-bit key; secure) header.d=protonmail.com header.i=@protonmail.com header.a=rsa-sha256 header.s=protonmail3 header.b=nc4YWVM/</code>
</code>
</pre> </pre>
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