how to setup spf record

We will share with you some of the more representative questions about SPF before.The environment is described as follows:The company ad domain name is contoso.com, the public network SMTP domain name is also contoso.com. The mail server used is Exchange CU10 and uses the Exchange Edge Edge Server to implement spam filtering. To prevent other mail system phishing domain contoso.com from sending mail to other domain names. An

No SPF record is set to forge sender 0x01. Preface SPF is called the Sender Policy Framework, that is, the Sender Policy Framework. The current Email communication is still using the Simple Mail Transfer Protocol. SMTP is a very simple transmission protocol, and it does not have good security measures. According to SMTP rules, the sender's email address can be

0x01. Preface SPF is known as the sender Policy framework, the sender policy frame. Current email communication, or is using the Simple Mail Transfer Protocol (Simplicity Mail Transfer Protocol) protocol. SMTP is a very simple transport protocol and has no good security in itself. According to the rules of SMTP, the sender's e-mail address can be declared arbitrarily by the originator. SPF is to prevent the

Previously thought is not set up, because in the self-service management system did not find the place. Today to the million Network technology customer service call, just know, in fact, can be set. Login www.net.cn, in the left menu has a "domain DIY self-help management", click to enter the "domain name self-help resolution platform" (Http://diy.hichina.com/cgi-bin/login), Use domain name and domain name password (not million network account password OH) login, click on the left menu "DNS

Recently been OutOfMemory error, record a little bit of Setup JVM virtual machine memory Java heap space method.Tomcat 7 Reference: http://www.davidghedini.com/pg/entry/install_tomcat_7_on_centoshttp://blog.csdn.net/f_zongjian/ article/details/5723665 Online Find a half-day Tomcat Setup method, a variety of. Actually very simple, set the java_opts parameter.Windo

The previous time has been looking at the algorithm problem, now the results of the study posted.1. Build a common binary tree2. Establish an ordered binary tree3. Traversal of a two-fork treeMiddle order traversal function travel ($T) { if ($T = = null) { return; } echo $T->value, "\ n"; Travel ($T->l); Travel ($T->r);} First Order traversal function Intravel ($T) { if ($T = = null) { return; } Intravel ($T->l); echo $T->value, "\ n"; Intravel ($T->r)

Using putty to finish Windows sending files to LinuxUnder Windows cmdpscp Like what:pscp jdk-8u161-linux-x64.tar.gz [emailprotected]:/root/javaSend the JDK installation package from the current directory to the folder on the Linux server root/java Use putty to complete a Linux server to send files to WindowsThe same is true under Windows cmdpscp [emailprotected]is to write the above backwards. CentOS javaweb Server Setup

, Node3 the tick off, and click OK. In this way, theoretically node3 is not a possible owner of Node1 and Node3.Online has said that this can solve the problem, but according to the actual operation found not, but also need to do the following operations.2) Modify the possible owners of the cluster in PowerShellRun the Get-clusterresource command on the PowerShell command line to view resource within the clusterOther resources in SQL Server 1 above, use Get-clusterownernode to view possible owne

user alias configuration file, Extman has been provided, location under/var/www/extsuite/extman/docs/, copy it to the/etc/postfix/directory:[[emailprotected]~]#cd/var/www/extsuite/extman/ docs/[[emailprotected]docs]#ls-lmysql_virtual_*-rw-r--r--. 1 Postfixpostfix166dec152005mysql_virtual_alias_maps.cf-rw-r--r--. 1postfixpostfix168feb252007mysql_virtual_domains_maps.cf -rw-r--r--. 1postfixpostfix170dec152005mysql_virtual_ Limit_maps.cf-rw-r--r--. 1postfixpostfix172dec152005mysql _virtual_mailbox

-bin=mysql-bin binlog_format=mixed server-id = 2 relay_log =/var/lib/mysql/mysql-relay-bin Log _slave_updates = 1 read_only = 1 4. Boot from library mysql> Change Master to master_host= ' 192.168.137.144 ', master_user= ' Repl ', master_password= ' 100301 ', master_log_file= ' mysql-bin.000001 ', master_log_pos=0; Turn on Sync mysql> start slave; View status Mysql> Show Slave Status\g Viewing replication status from a library If the configuration is all right, then master and slave will start t

] ~]# service Dovecot restart #dovecot [[Email protected] ~]# service httpd restart #apache serverAt this point, the mailbox system setup basically ended.Note: The logs during the Postfix,courier-authlib,cyrus-sasl,dovecot run can be viewed through/var/log/maillog, and the Apache server logs are/var/log/httpd/ Error_log for viewing.Visit http://host Ip/extmail to log in to Extmail, if the page prompts Unix::syslog not found, install the Perl-unix-sysl

are restarted:[Email protected] ~]# service postfix restart #postfix [[email protected] ~]# service cyrus-authlib Restart #cyrus-A Uthlib[[email protected] ~]# service SASLAUTHD restart #cyrus-sasl[[email protected] ~]# service Dovecot Restart #do Vecot[[email protected] ~]# service httpd restart #apache serverAt this point, the mailbox system setup basically ended.Note: The logs during the Postfix,cyrus-authlib,cyrus-sasl,dovecot run can be viewed t

Description: HA1: User name;zd315: password;ORCL: database instance name;File is followed by the path of the DMP file placement.Connect under Window1. Instant Client 11g Installation and configuration2. PL/SQL tools can be connectedSummary: This article resolves the installation of the Oracle system and the establishment of the database configuration and the final database import process, the above-written content to draw on a lot of online resources, to thank them, I hope I write a

Linux apache+php setup Configuration record Chapter 1th Environmental Description 1.1 System Description CentOS 6.4 1.2 Software Description Httpd-2.4.2.tar.gz Apr-util-1.4.1.tar.gz Apr-1.4.6.tar.gz Pcre-8.13.tar.gz php-5.4.3.tar.bz2 Libmcrypt-2.5.8.tar.gz Mhash-0.9.9.9.tar.gz 2nd Apache Construction Instructions 2.1 Installing dependent Packages Yum install make openldap-devel ntp vim-enhanced gcc gcc-c++

followed by the path of the DMP file placement.Connect under Window1. Instant Client 11g Installation and configuration2. PL/SQL tools can be connectedSummary: This article resolves the installation of the Oracle system and the establishment of the database configuration and the final database import process, the above-written content to draw on a lot of online resources, to thank them, I hope I write a little help to the people behindLinux Oracle System installation to database

,virtual_mailbox_domains,virtual_alias_maps parameter value format is MySQL: Config file address, Indicates that postfix will look for table records in MySQL to get the corresponding parameter values, and the Postfix lookup table type is mysql-enabled:[Email protected] ~]# Postconf-m | grep MySQL MySQL The corresponding virtual user mailbox address, virtual domain, virtual user alias configuration file, Extman has been provided, location under/var/www/extsuite/extman/docs/, copy it to the/etc/po

,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unauth_ Pipelining,reject_unauth_destination smtpd_sasl_auth_enable = yes Smtpd_sasl_local_domain = $myhostname smtpd_sasl_security_options = noanonymous Smtpd_sasl_path = smtpdIf you want to validate/etc/passwd and/etc/shadow by using the login password of the system user, edit the/ETC/SYSCONFIG/SASLAUTHD mech parameter (Note: The original PAM algorithm is not validated):[Email protected] sysconfig]# VI saslauthd Mech=shadowResta