You can find the name server settings in the navigation “Administration of products” in the menu point „Basic Configuration“ and then on the edit icon, on the right hand, and then choose „edit name server“.
You can create the following name server entries yourself:
Linking of aDOMAIN to a specific IP address.
IPv6 equivalent to A-Record under IPv4.
Linking of a sub domain to another sub domain. An alias for a DOMAIN.
Redirects the e-mail requests for a DOMAIN to another mail server. It is necessary to specify a host name as authorized mail server with a specific priority.
Forwarding of name server requests to another name server. This entry cannot be set up for second level domains. There is also no wild card (*) entry possible.
Sender Policy Framework prevents or complicates the forgery of the sender of an e-mail. The SPF information defines which servers are allowed to send e-mails for this domain. SPF can thus help to combat spam and make phishing more difficult.
SRV entries allow the definition for availability of IP based services offered under a DOMAIN and are required for the support of specific protocols and implementations like SIP/VoIP or XMPP (Jabber, Instant Messaging).
With TXT entries, additional information can be deposited in the name server settings of a DOMAIN. The text can be defined freely. This way, information which cannot be assigned to a fixed entry type, can be deposited in a name server entry. That is why TXT entries work especially well for specific, individual configurations and the use of new services on name server level, for which no separate entry type is available. An application example for TXT entries is “DomainKeys Identified Mail” DKIM), used, like SPF, for authentication of dispatching mail servers.