From 39d0f88abf4fa149561c0ca2ec93a868e29fb1b2 Mon Sep 17 00:00:00 2001
From: lolcat <will@lolcat.ca>
Date: Sat, 17 Oct 2026 22:27:58 -0400
Subject: [PATCH] for some fuckass reason this part of the readme never got
 uploaded

---
 README.md | 44 ++++++++++++++++++++++++++++++++++----------
 1 file changed, 34 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index 894635b..9f50e10 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 BullMail is a no-bullshit solution to setup an E-Mail server on a Debian/Ubuntu shitbox.
 
 ## Now updated to work with Debian 13 Trixie
-If you ran this script before, simply run it again. Just a heads up, it will generate new DKIM keys. I recommend you generate new ones otherwise this shit might break.
+If you ran this script before, simply run it again. Just a heads up, it will generate new DKIM keys. I recommend you generate new ones otherwise this shit might break. If you need it to work on Debian 12, please clone this revision instead:
 
 ## What it does
 - Creates an `SMTP` server (`postfix`, to send and receive E-Mails)
@@ -44,12 +44,30 @@ Log onto your registrar and set and A and AAAA record onto your domain that poin
 
 Now, you want to point these records in a way that `mail.yourdomain.com` resolves to your server's IP.
 
+Now, make sure to also add this TXT record (this TXT records have no name. Input `@` if it forces you to put a name in):
+```
+v=spf1 mx a:mail.yourdomain.com ip4:51.79.70.119 ip6:2607:5300:205:200::35c2 -all
+```
+
+Also add this record. Give it the `_dmarc` name.
+```
+v=DMARC1; p=reject; rua=mailto:postmaster@yourdomain.com; fo=1
+```
+Replace the domain, ip4 and ip6 with your own.
+
+Lastly, add this `MX` record to your domain:
+```
+mail.yourdomain.com
+```
+
+If it asks for a distance/priority parameter, input `10`.
+
 **Keep your domain's DNS manager open, we're not done with it.**
 
 ## Step 2
 Go to your host's server configuration panel and set the rDNS (Reverse DNS) to `mail.yourdomain.com` (obviously, replace `yourdomain.com` with your own). This helps some exotic mail servers to perceive your E-Mails as not spam. After setting up the rDNS, restart the server and run this from your local machine:
 
-```
+```sh
 will@fuckedmachine:~$ ping yourdomain.com
 PING yourdomain.com (x.x.x.x) 56(84) bytes of data.
 64 bytes from mail.yourdomain.com (x.x.x.x): icmp_seq=1 ttl=52 time=13.4 ms
@@ -63,26 +81,26 @@ The 3rd line is the interesting part. It should say `64 bytes from mail.yourdoma
 
 ## Step 3
 SSH onto your shitbox and become root
-```
+```sh
 sudo su
 ```
 
 ## Step 4
 Create your mail user. Note that all users with the `mail` group will be able to send and receive mail.
-```
+```sh
 useradd -m yourname -G mail
 passwd yourname
 ```
 
 OR... If you already have an user that you use (say, `will`), do this instead:
-```
+```sh
 usermod -aG mail will
 ```
 `-aG` tells your stupid server "hey, `mail` is a secondary group for `will`!" `-G` says it's the primary group.
 
 ## Step 5
 Run these commands (don't run `bullmail.sh` quite yet you moron)
-```
+```sh
 git clone https://git.lolcat.ca/lolcat/bullmail
 cd bullmail/script
 chmod +x bullmail.sh
@@ -90,7 +108,7 @@ chmod +x bullmail.sh
 
 ## Step 6
 Edit `bullmail.sh` and change the variables at the top to what matches your configuration. In my case, this is what I used:
-```
+```ini
 #
 # Input your settings here
 #
@@ -106,11 +124,11 @@ I know this is not the first time you're trying to install a mail server. Make s
 
 ## Step 8
 Run the script. Make sure you're root and inside the `script` folder
-```
+```sh
 ./bullmail.sh
 ```
 
-Wait for it to complete. Trust the plan.
+Wait for it to complete. Trust the plan. When postfix asks questions, pick "Internet site" and when it asks for a domain enter `yourdomain.com` (obviously, replace yourdomain.com with your own domain. Don't add `mail.` in front of it)
 
 ## Step 9
 The script should output something like this at the end:
@@ -122,7 +140,10 @@ mail._domainkey IN TXT ( "v=DKIM1; k=rsa; "
 Bye!
 ```
 
-In your DNS settings of your domain, create a TXT record called `mail._domainkey` with the value `v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvrB...` (truncated)
+In your DNS settings of your domain, create a TXT record called `mail._domainkey` with this shit in it. Notice how you need to remove the weird quotes the script outputs after `k=rsa; "`. Example:
+```
+v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvrB... (truncated)
+```
 
 Make sure to copy-paste what the script outputs, not the bullshit I gave as an example, you moron.
 
@@ -163,6 +184,9 @@ Content-Transfer-Encoding: 7bit
 test
 ```
 
+# Additional configuration
+`rspamd` is your spam filter. You can tweak it manually to instruct it to block specific E-Mails, depending of your situation.
+
 # Screenshots
 ## Inbox
 ![Inbox screenshot](img/inbox.png)