DNS configuration for Kolab

A standard single host kolab deployment will require a DNS configuration like this:

kolab                           A       YOURPUBLICIP
kolab                           MX      10 kolab.example.com.
kolab                           TXT     "v=spf1 mx a:kolab.example.com mx:kolab.example.com -all"
autodiscover.kolab              CNAME   kolab.example.com.

_autodiscover._tcp.kolab        SRV      0  0  443 kolab.example.com.
_caldav._tcp.kolab              SRV      0  0   80 kolab.example.com.
_caldavs._tcp.kolab             SRV      0  1  443 kolab.example.com.
_carddav._tcp.kolab             SRV      0  0   80 kolab.example.com.
_carddavs._tcp.kolab            SRV      0  1  443 kolab.example.com.
_imap._tcp.kolab                SRV      0  0  143 kolab.example.com.
_imaps._tcp.kolab               SRV      0  1  993 kolab.example.com.
_pop3._tcp.kolab                SRV     10  0  110 kolab.example.com.
_pop3s._tcp.kolab               SRV     10  1  995 kolab.example.com.
_sieve._tcp.kolab               SRV      0  0 4190 kolab.example.com.
_smtp._tcp.kolab                TXT     "v=TLSRPTv1; rua=mailto:admin@kolab.example.com"
_submission._tcp.kolab          SRV      0  1  587 kolab.example.com.
_webdav._tcp.kolab              SRV      0  0   80 kolab.example.com.
_webdavs._tcp.kolab             SRV      0  1  443 kolab.example.com.

_dmarc.kolab                          TXT     "v=DMARC1; p=quarantine; adkim=s; aspf=s; rua=mailto:admin@kolab.example.com; ruf=mailto:admin@kolab.example.com"
_mta-sts.kolab                        TXT     "v=STSv1; id=2024031901;"
dkim20240318._domainkey.kolab         TXT     (
                                            "v=DKIM1; p="
                                            "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7JdTEn/T2MhB6KLbATJj"
                                            "4SGernbem4d7dAW7/kVRbiMB2EtPpQCR98eeXOOHcufXVc3w4BocXEnD47JPpkFY"
                                            "JBXWF32m4Y2SapBYbsXndN9fyXRrHO9wPJlW5QK5i9D/bRUznfaBJm54y+BuX0Ln"
                                            "/ippqFe6z3LPjmro9Y9WpRzevYG/TT69Iug5v4U/PA1/rEv+zZGQvNxInZYF7O2M"
                                            "FDbD2pYi7l4hWADP+iwOEc+Li5vPlEvOaUlSQCb06sc0/QBHDDyU2WaEJiYy/Mk2"
                                            "xCmSI44f3mQghmiNsu7vlPiztAYKjNyiVk8iWDttL9OV9qQyxHL18Q74UzJR6Ayl"
                                            "rwIDAQAB"
                                        )

Please note, this is an example that needs to be adjusted to the installation:

• Point the A record at your public IP.
• Use the dkim public key that matches the private key generated for your system.