Docker-Mailserver

Docker-Mailserver

Docker-Anwendung from Kulisch's Repository

Übersicht

A production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.). Only configuration files, no SQL database. Keep it simple and versioned. Easy to deploy and upgrade.

h3 Preperations /h3
This short guide will help you to set up a mailserver.

To keep the mailserver running, there are some important points to consider, like at least one configured mail account, SSL type, hostname, etc.

If these points are missing, they will be mentioned in the Docker logs to simplify troubleshooting.

Make sure, you got an domain and a static IP adress to setup your mailserver.
MX and A DNS entries are needed. After that, portforward the mentioned ports in your router.
h3 Initial steps: /h3

The following placeholders will be used:

b user /b is the mail account you create.

b example.com /b is the domain you are using.

b mail.example.com /bis the FQDN of the mailserver.

b password /bis the password for your mail account./b

  1. At first, setup the b environment variables /b and change b--hostname mail.example.com /b in the b Extra Parameters (advanced view)/b as needed.

Choose custom b Network Type /b and set an fixed IP Adress. (didn't tested other options)

  1. Create an e-mail account by starting the container with bPost arguments /b (advanced view):

bsetup email add user@example.com 'password'/b

bsetup email add admin@company.org 'Ch33rs#M8!' /b (for example)

  1. b Remove the post arguments. /b

  2. Start container and check the logs.

Optional and recommended: Open Container Console and type in...

bsetup config dkim/b

  1. Try to connect to the server with an e-mail client.

  2. Test sending and recieving mails

Optional: If everything works, you can enable bFail2Ban/b in the environment variables

For further informations, visit the extended documention:

https://docker-mailserver.github.io/docker-mailserver/edge/

Laufzeit-Argumente

Netzwerk
bridge
Shell
bash
Privilegiert
false
Extra Params
--hostname mail.example.com --restart=unless-stopped --cap-add=NET_ADMIN --cap-add=SYS_PTRACE

Konfiguration der Vorlage

Port: SMTPPorttcp

SMTP (explicit TLS => STARTTLS) Port

Ziel
25
Standard
25
Wert
25
Port: IMAP4Porttcp

IMAP4 (explicit TLS => STARTTLS) Port

Ziel
143
Standard
143
Wert
143
Port: ESMTPPorttcp

ESMTP (implicit TLS) Port

Ziel
465
Standard
465
Wert
465
Port: ESMTP (SSL)Porttcp

ESMTP (explicit TLS => STARTTLS) Port

Ziel
587
Standard
587
Wert
587
Port: IMAP4 (SSL)Porttcp

IMAP4 (implicit TLS) Port

Ziel
993
Standard
993
Wert
993
MailsPathrw

/var/mail/

Ziel
/var/mail/
Standard
/mnt/user/appdata/dms/mail-data/
Wert
/mnt/user/appdata/dms/mail-data/
Mail statePathrw

/var/mail-state/

Ziel
/var/mail-state/
Standard
/mnt/user/appdata/dms/mail-state/
Wert
/mnt/user/appdata/dms/mail-state/
Log filesPathrw

/var/log/mail/

Ziel
/var/log/mail/
Standard
/mnt/user/appdata/dms/mail-log/
Wert
/mnt/user/appdata/dms/mail-log/
ConfigPathrw

/tmp/docker-mailserver/

Ziel
/tmp/docker-mailserver/
Standard
/mnt/user/appdata/dms/config/
Wert
/mnt/user/appdata/dms/config/
SSL TypeVariable

bempty/b = SSL disabled b (NOT recommended)/b bletsencrypt/b = Enables Let's Encrypt certificates b (/etc/letsencrypt/live/example.com/) /b bcustom/b = Enables custom certificates bmanual/b = Let's you manually specify locations of your SSL certificates for non-standard cases bself-signed/b= Enables self-signed certificates If bemtpy/b is b not /b choosen, go to = Show more settings...

Ziel
SSL_TYPE
Mount SSL PathPathrw

bMounting path/b where certs are stored If bletsencrypt/b is choosen as bSSL Type/b, then path structure bmust/b look like this: Host: /mnt/user/appdata/.../letsencrypt/ Container: /etc/letsencrypt/

Ziel
/etc/letsencrypt/
Key pathVariable

This is only supported with b`SSL_TYPE=manual`/b. Provide the path to your bkey/b file that you've mounted access to within the container. Example: /etc/letsencrypt/live/example.com/privkey.pem

Ziel
SSL_KEY_PATH
Cert PathVariable

This is only supported with b`SSL_TYPE=manual`/b. Provide the path to your bcert/b file that you've mounted access to within the container. Example: /etc/letsencrypt/live/example.com/fullchain.pem

Ziel
SSL_CERT_PATH
PostgreyVariable

Greylist <br> 1 = Enable <br> 0 = Disable

Ziel
ENABLE_POSTGREY
Standard
0
Wert
1
Fail2BanVariable

Fail2Ban <br> 1 = Enable <br> 0 = Disable

Ziel
ENABLE_FAIL2BAN
Standard
0
Wert
0
ClamAVVariable

ClamAV <br> 1 = Enable <br> 0 = Disable

Ziel
ENABLE_CLAMAV
Standard
1
Wert
1
Max mail sizeVariable

empty => 10240000 (~10 MB)

Ziel
POSTFIX_MESSAGE_SIZE_LIMIT
Standard
10240000
Wert
10240000
LocaltimePathro

Localtime

Ziel
/etc/localtime
Standard
/etc/localtime
Wert
/etc/localtime
SPAMASSASSINVariable

Spamassassin <br> 1 = Enable <br> 0 = Disable

Ziel
ENABLE_SPAMASSASSIN
Standard
1
Wert
1
Single state directoryVariable

0 => mail state in default directories <br> 1 => consolidate all states into a single directory (`/var/mail-state`) to allow persistence using docker volumes

Ziel
ONE_DIR
Standard
1
Wert
1
Spam to inboxVariable

deliver spam messages in the inbox <br> 1 = Enable <br> 0 = Disable

Ziel
SPAMASSASSIN_SPAM_TO_INBOX
Standard
0
Wert
1
Port: ManagesievePorttcp

Managesieve

Ziel
4190
Standard
4190
Wert
4190
ManagesieveVariable

Managesieve <br> 1 = Enable <br> 0 = Disable

Ziel
ENABLE_MANAGESIEVE
Standard
0
Wert
1

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Einzelheiten

Repository
mailserver/docker-mailserver:latest
Zuletzt aktualisiert2026-05-08
Erstmals gesehen2022-04-27

Führen Sie Docker-Mailserver auf Unraid aus.

Docker-Mailserver ist gelistet in Community Apps für Unraid OS. Erkunden Sie Unraid, um einen flexiblen Heimserver, ein NAS oder ein Heimlabor aufzubauen.