diff --git a/src/content/docs/ispmail-trixie/120-overview.mdx b/src/content/docs/ispmail-trixie/120-overview.mdx
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----
-title: Overview
-lastUpdated: 2025-08-09
-slug: ispmail-trixie/overview
-sidebar:
- order: 120
----
-
-import "@splidejs/splide/css";
-import { Splide, SplideSlide } from "astro-splide";
-
-Your mail server will use multiple pieces of software to do its job. I have created a little slideshow to help you
-understand what happens when someone on the internet sends an email to your server. I will provide more slideshows later
-when it comes to fetching and relaying emails. Use the arrows to switch between slides:
-
-
- {Array.from({ length: 24 }, (_, i) => i + 1).map((i) => (
-
-
-
- ))}
-
-
-So:
-
-- DNS is used to find your mail server
-- Postfix receives emails using SMTP (the Simple Mail Transport Protocol)
-- SQLite stores information about your domains and mail users
-- rspamd checks if it is spam
-- Dovecot saves it to disk
diff --git a/src/content/docs/ispmail-trixie/160-receive-emails.mdx b/src/content/docs/ispmail-trixie/160-receive-emails.mdx
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+---
+title: Receive emails
+lastUpdated: 2025-08-20
+slug: ispmail-trixie/receive-emails
+sidebar:
+ order: 160
+---
+
+import { Aside } from "@astrojs/starlight/components";
+
+import "@splidejs/splide/css";
+import { Splide, SplideSlide } from "astro-splide";
+
+I have created a little slideshow to help you understand the process of receiving an email from a remote mail server.
+Use the arrows to navigate between slides:
+
+
+ {Array.from({ length: 24 }, (_, i) => i + 1).map((i) => (
+
+
+
+ ))}
+
+
+So:
+
+- DNS is used to find your mail server. First the MX record. Then the A and/or AAAA record.
+- Postfix receives emails using SMTP (the Simple Mail Transport Protocol)
+- MariaDB stores information about your domains and mail users
+- rspamd checks if it is spam
+- Dovecot saves it to disk
+
+## DNS
+
+Let's begin with setting up the DNS records. Say that you want to receive emails for the `example.com` domain. If some
+other mail server on the internet wants to send an email to your server, it looks for two records:
+
+- **MX record (`example.com`)**
+ The MX (Mail Exchange) record tells other mail servers _where to deliver emails_ for the domain `example.com`.
+ Instead of pointing directly to an IP address, it points to a **hostname** (for example, `smtp.example.com`).
+ MX records also include a **priority value**. If multiple mail servers are listed, the one with the lowest priority
+ number is tried first. Others are used as fallback if the first is unavailable.
+
+- **A / AAAA record (`smtp.example.com`)**
+ The hostname specified in the MX record (`smtp.example.com`) must resolve to an IP address so that other mail servers
+ know how to reach it.
+ - An **A record** maps the hostname to an IPv4 address.
+ - An **AAAA record** maps the hostname to an IPv6 address.
+
+ Once resolved, the sending mail server connects to that IP address on **TCP port 25**, which is the standard port for
+ email delivery (SMTP).
+
+
+
+
+
+In zone syntax you would create something like:
+
+```
+@ IN MX 10 smtp
+smtp IN A 100.64.17.3
+smtp IN A fd7a:115c:a1e0::17
+```
+
+If possible, also add a PTR record that makes the IP addresses point back to the name `smtp.example.com`. Other mail
+servers may be more likely so flag your sent emails as spam if you do not have a PTR record. Preferable the forward
+(A/AAAA) and reverse (PTR) records match.
+
+## Postfix
+
+…