How to Install MailCow Server in 2024

Mailcow was one of those installs that did not go smoothly for me. There are a lot of moving parts, including Docker at play here and the instructions I’ve found everywhere else simply didn’t work. It was only by piecing together conflicting pieces of information that I got MailCow working in 2024. Here’s my Guide .

I’m not a big linux guy. I appreciate that everyone is working on competing with the big boys out there, but the fragmentation is hellish to me. I’ll spare you my complaints for now. But just be aware that I am going to write this doc in a style that is in protest for the most part. One thing that always kinda made me scratch my head… is why so many steps? Why is everything a 12 step process when it could be 3?

Get and Install Debian

Get and install Debian 11. Don’t get Ubuntu (couldn’t get it to work) I didn’t try Debian 12.

Debian is slightly different than ubuntu in that you have to add your user to the “sudoers” list. So do that by editing /etc/sudoers

Enter Sudo Mode

sudo -i

Run This Script

apt update
apt upgrade -y
apt install curl git

curl -sSL | CHANNEL=stable sh

apt update
apt install docker-compose-plugin

LATEST=$(curl -Ls -w %{url_effective} -o /dev/null && LATEST=${LATEST##*/} && curl -L$LATEST/docker-compose-$(uname -s)-$(uname -m) > /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

git clone 
cd mailcow-dockerized
echo ***** ./ 
echo ***** docker-compose up -d
docker-compose up -d

echo ***** docker-compose ps 
docker-compose ps 

echo use sudo docker-compose ps to check if containers are running


open your webbrowser and go to


The Default admin username and password is
admin / moohoo

Good Luck!

0 Replies to “How to Install MailCow Server in 2024”

  1. I’ve been there with the multi-step installations, tell me about it! These kinds of guides are lifesavers though, even if they’re a bit rugged around the edges. But, I gotta say, does everyone just default to Docker now for everything? I remember the simpler times, but hey, I get the portability perks. Still, I wonder how many users would prefer a more straightforward installer that doesn’t require a deep dive into admin territory. Anybody else feel the nostalgia for the old-school package managers, or is it just me? ??

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