DNS (short for Domain Name System) is a distributed Internet directory service. DNS is used to translate between domain names and IP addresses, and to control Internet email delivery. Domain names are alphabetic as they're easier to remember. The Internet however, is based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.somesite.com might translate to 198.105.105.7.

You can test the DNS is working and SurgeMail has access to it by going to the shell or command prompt and typing You should now be able to send emails without dns problems, there will be times when you will get some dns lookup failures of course. See similar questions...

DNS is a globally distributed system comprising many thousands of servers all sharing information. What is most important to many companies is the speed at which their web (or any other) address is looked up using the system as a whole, and not the performance of a particular DNS server (which is covered in the DNS Server Test). All Internet addresses are defined on an authoritative server first of all. See similar questions...

SurgeMail will attempt to use the DNS settings of your operating system for its name resolutions. If this is not working for some reason you can manually force SurgeMail to use particular dns servers using the setting g_dns_host setting. SurgeMail provides status information on the DNS servers that it uses in on the status page on the web interface. If this still fails it may be that the DNS server is faulty and is not responding or that a firewall or gateway is blocking TCP port 53 access. See similar questions...

The DNS name lookup failure means that the first part of the URL you are requesting contains a domain name that does not exist. Double-check the address (URL) you typed to ensure it is exactly correct. This behavior occurs when the ratings system has been enabled and the Ratings.pol file is missing or damaged. Type the Supervisor password, and then click OK (if the password you typed does not work there maybe no password so delete the password and click OK). See similar questions...

A normal DNS lookup is used to resolve a host name to an IP address. On the other hand, a reverse Domain Name System (DNS) lookup is used to resolve a message sender's IP address to a valid host name. While somewhat effective in the past, it has become clear that reverse DNS lookups alone provide little spam protection and may actually cause more false positives than positives. See similar questions...

Please note that you have to be connected to the Internet when resolving domain names. eWebLog Analyzer has a DNS database that is empty after installation. Every time when you do a DNS lookup, the database is populated with the domain names that are found. When a DNS lookup is done, the database is first queried before doing a DNS lookup on the internet. See similar questions...

Q0312: Is it possible to use a conditional expression for the host item in a route_list for manualroute router? I tried the following, but it doesn't work: Q0314: I have a really annoying intermittent problem where attempts to mail to valid sites are rejected with unknown mail domain. This only happens a few times a day and there is no particular pattern to the sites it rejects. If I try to lookup the same domain a few minutes later then it is OK. See similar questions...

DNS (Domain Name System) is a system that translates a domain name from letters (www.UniversalDomains.net) into a numerical IP address (NS1.UniversalDomains.net 63.85.86.14). Each time you register a domain name you must specify your DNS information. If you register a domain name through UniversalDomains.net, you can use our DNS information free of charge! This is known in the industry as "parking" a domain- parking is free using UniversalDomains.net's servers. See similar questions...