google mail dns records

In the last blog post we introduced several of the most essential records in a DNS server, including A records, NS records, and SOA records. In this blog post we will continue to introduce several other commonly used records of

For any valid domain name, there should be an authoritative domain name server (DNS) for that domain, and one or more resource records for that domain name in the domain name server.There are 5 items in a resource record, namely, domain name (domain_name), Lifetime (time_to_live), type (type), Class (Class), and value. whichDomain name: Is the domain that this record points to;Time to live: Indicates the st

IP address, the type of service provided, and so on. Common resource record types are: SOA (start authorization structure), A (host), NS (name server), CNAME (alias), and MX (mail exchanger). A record is an important record of name resolution, which is used to map a specific host name to the IP address of the corresponding host. You can create it either manually in the DNS server or through a

In fact, DNS is not just a way to interpret addresses, but also to answer more information about the network and the host. One of the most important features is the ability to route mail systems. This information is usually present in the DNS data file with a different "record" name. Let's refer to a Linux DNS file to

Nslookup is a command-line tool that monitors whether DNS servers in the network can correctly implement domain name resolution. It is available in Windows nt/2000/xp. This article is mainly for the mailbox MX records and related query methods to do some reference: Windows Start Menu-> run, enter Cmd/command (different versions of the system commands), and go to the Command Line window. 1. At the command pr

network domainThe same domain may have more than one mail exchanger, so each MX record has a priority value that the MTA can use as the basis for selecting the MX hostPTR recordsThe PTR record represents the corresponding relationship between "IP address" and "host name", which is exactly the opposite of a recordThe DNS system uses a PTR record to answer "what is the host name of an IP address?"RFC 882 con

From http://www.hscripts.com/tools/HDNT/dns-record.php A domain name is a unique name that you choose for your web site. AllWebsites are identified only by their names called as domain names. EachDomain name has a unique IP address. This page helps you to find the IPAddress for given hostname.This tool converts the hostname to IP address. Types of DNS records: A

exchange record that points to a mail server that is used to locate a mail server based on the recipient's address suffix when the e-mail system sends a message. For example, when a user on the internet wants to send a letter to user@mydomain.com, The user's mail system finds an MX record of this domain name through

In fact, DNS is not just a way to interpret addresses, but also to answer more information about the network and the host. One of the most important features is the ability to route mail systems. This information is usually present in the DNS data file with a different "record" name. Let's refer to a Linux DNS file to

What is SPF? Is the sender policy framework. SPF can prevent others from forging your email. It is a solution for anti-spoofing emails. After you define the SPF record of your domain name, the recipient determines whether the connected IP address is included in the SPF record based on your SPF record, it is regarded as a correct email; otherwise it is regarded as a forged email. For more information, see rfc4408 (http://www.ietf.org/rfc/rfc4408.txt) How to add SPF

Sendmail Server First, if the monitoring machine itself is configured to mail service can choose this; PHP functions need to be set separately, relatively troublesome. So the SMTP server that uses the extranet directly is selected here . From name simply displays the sender's name in the message and does not modify the note name of the recipient in the original message. The DNS options Orange area indica