MX is called a mail exchange record.
Most netizens will have one or more free mailboxes, using Gmail, Hotmail, QQ, 163, etc.Our mailbox address format is: userName@gmail.com, userName@hotmail.com, userName@qq.com, userName@163.com
When your
I. PrefaceIi. Basic Knowledge1. What is an IP address?2. What is a fixed IP address?3. What is a dynamic IP address?4. What is a domain name? What makes a domain name?5. What are subdomain names and second-level domain names?6. What is DNS?7. What
Zheng Yi 20110330
Background:
What is MXRecord?
Used by the email system to locate the email server based on the recipient's address suffix when sending an email. For example, when the recipient is a user@mydomain.com, the system will parse
The following is from the author of the "network administrator must read-Net Formation" (2nd edition) of the book.
7.6.2 main resource record types and application examplesAfter you create a zone, you need to add additional resource records to
The role and type of 1.DNS systemThe role of DNS system in the network is to maintain an address database, which records the various host domain names also IP address correspondence, in order to provide the client program forward or reverse the
Today, with the proliferation of spam, spam has brought great harm to our life, work, and study. Due to the lack of an effective sending authentication mechanism between SMTP servers, even if spam recognition blocking technology is adopted, in
This is a creation in
Article, where the information may have evolved or changed.
NET package provides a portable interface for network I/O, including TCP/IP,UDP, domain name resolution, and UNIX sockets. Although the net package provides a lot of
DNS is one of the core Internet protocols. Whether it's surfing the web or programming, you need to know a little bit about it.This article describes in detail The principle of DNS and how to use the tool software to observe its operation. My goal
Each IP address can have a host name that consists of one or more strings separated by a decimal point. With the hostname, do not memorize each IP device IP address, just remember the relative intuitive meaningful host name on the line. This is the
The problem is due to anti-spam software, which has been confirmed by Sina that they recently deployed a set of anti-spam systems. By default, the mail server sends its own FQDN name when it makes a helo command to establish a session with a Remote
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.