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What zone records are required in my DNS?
Posted by Dayan D. Jeremiah, Last modified by Dayan D. Jeremiah on 24 May 2018 06:01 PM
Apart from the your standard A Records, MX Records, SPF, DKIM, DMARC and ISP rDNS records the following SRV records should also be created for the corresponding IceWarp services that you will be using;

_caldav._tcp.domain.com. 86400 IN SRV 10 0 80 targethost.com.
_caldavs._tcp.domain.com. 86400 IN SRV 10 0 443 targethost.com.
_carddav._tcp.domain.com. 86400 IN SRV 10 0 80 targethost.com.
_carddavs._tcp.domain.com. 86400 IN SRV 10 0 443 targethost.com.
_ischedule._tcp.domain.com. 86400 IN SRV 10 0 80 targethost.com.
_ischedules._tcp.domain.com. 86400 IN SRV 10 0 443 targethost.com.
_sip._udp.domain.com. 86400 IN SRV 10 0 5060 targethost.com.
_sip._tcp.domain.com. 86400 IN SRV 10 0 5060 targethost.com.
_sip._tls.domain.com. 86400 IN SRV 10 0 5061 targethost.com.
_xmpp-client._tcp.domain.com. 86400 IN SRV 10 0 5222 targethost.com.
_xmpp-server._tcp.domain.com. 86400 IN SRV 10 0 5269 targethost.com.
_autodiscover._tcp.domain.com. 86400 IN SRV 10 0 443 targethost.com.

Autodiscover
Autodiscover is a mechanism that allows clients such as Outlook, IceWarp Desktop Client, Exchange Active Sync clients as well as iOS (iPhone,iPad) and Android devices to easily configure their email knowing only their email address and password. Autodiscover is available on IceWarp Server and for this work correctly a corresponding Autodiscover record should be setup in your DNS as an A record or CNAME and an SRV as per the examples below;

autodiscover.domain.com. IN A 192.168.100.100

or alternatively, as a CNAME

autodiscover.targethost.com. IN A 192.168.100.100
autodiscover.domain.com. IN CNAME autodiscover.targethost.com.

Autodiscover SRV Example
_autodiscover._tcp.domain.com. 86400 IN SRV 10 0 443 targethost.com.

Autoconfig
Autoconfig is similar to Autodiscover but is used by Thunderbird clients to easily configure their email knowing only their email address and password. Autoconfig requires a corresponding DNS A record or CNAME as per the examples below;

autoconfig.domain.com. IN A 192.168.100.100

or alternatively, as a CNAME

autoconfig.targethost.com. IN A 192.168.100.100
autoconfig.domain.com. IN CNAME autoconfig.targethost.com.

Autoconfig is not natively available within IceWarp Server but can be setup quite easily. The following Mozilla articles explain in more detail how Autoconfig can be setup on a server;

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