postfix vs sendmail

Speed-up update of Sendmail-Linux Enterprise Application-Linux server application information. For details, refer to the following section. As a mail service software, Sendmail has always been widely used by IT manufacturers. However, Since Sendmail was designed to provide users with mail sending and receiving services, network security has not been taken too muc

First, the basic knowledge:SendMail is the most widely used message transfer agent in a UNIX environment, SendMail mail server features powerful but complex configuration, sendmail version upgrades very frequently, The SendMail version number used by the host can be judged by telnet to the host's Port 25th. For example: Telnet xxx.xxx.xxx.xxx 25 xxx.xxx.xxx.xxx E

-------Start commandSystemctl Start DovecotService Courier-authlib RestartSystemctl Status Courier-authlibSystemctl Enable Courier-authlibSystemctl Start SASLAUTHDSystemctl Enable SASLAUTHD-------postfix-------ConfigurationFirst, equipment workSetenforce 0Systemctl Stop FirewalldIptables-p INPUT ACCEPTIptables-fIptables-xIptables-lSecond, install mysql5.7 Epel sourceYum install-y wgetwget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.r

====================================== Related Software:1. Send email --- postfix 2. Identity Authentication --- sasl2 3. receive email --- dovecot 4. Anti-Virus email --- clamAV 5. Anti-Spam --- spamassassin 6. Control the virus and spam scanner --- amavisd-new ====================================== Questions to be improved: 1. group email permission settings 2. user mailbox quota limit ====================================== Complete email system ar

PostfixForTlsYes. It is provided by a set of patch files written by lutz janicke. This set of patch files can be obtained from the add-on software link on the postfix homepage. If you use the pre-compiled postfix package that is included with the platform, make sure that this version does contain the tls patch. In addition to the tls support for postfix, you must

Postfix Anti-Spam technology-Linux Enterprise Application-Linux server application information. The following is a detailed description. The Anti-Spam function of MTA is to filter sessions during MTA processing. This filter not only filters the Spam Sent to itself, but also prevents itself from being maliciously used to send spam. Postfix implements all major MTA filtering technologies .. MTA filtering is

As a result of the writing of an article also just contact Postfix, the e-mail system is also very superficial understanding, although barely built to run the mail system, but also exposed a lot of problems. At the same time blind pursuit of function, make the whole installation process is long, for want to get started friend is more difficult. This time I will revise the previous article, and remove the search and anti-spam functions, complete the in

In linux, configure sendmail (RPM package)-Linux Enterprise Application-Linux server application information. For details, refer to the following section. Environment: RedHat Linux 9.0 is fully installed or the following installation packages have been installed: Imap-2001a-18.i286.rpm Sendmail-8.12.8-4.i386.rpm M4-1.4.1-13.i386.rpm Cyrus-sasl-2.1.10-4.i386.rpm Cyrus-sasl-md5-2.1.10-4.i386.rpm Cyrus-sasl-pl

Article Title: use Sendmail to set up a Mail server in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Email is the most commonly used on the Internet, and many enterprise users often use free email systems. Today, I will introduce you to Sendmail, a mail server s

Today, the system needs to use its SMTP server to send emails. Our system architecture is based on appfuse. In fact, it uses spring mail to encapsulate javamail calls, previously, we used a third-party SMTP service. I started to consider Postfix, good reputation, and had a long time. It was set up and needed support for domain name MX record. We just used it for testing. There was no domain name case test, but it was not done well! However,

Difficulty sending e-mails:2015/3/12 15:54Tail-f/var/log/maillog:noqueue:syserr (Apache): Can not ChDir (/var/spool/clientmqueue/): Permission deniedsudo chown smmsp:smmsp/var/spool/clientmqueueSUDO/USR/SBIN/USERMOD-G smmsp-g Apache ApacheRestarting Apache is still not possible.Maillog Error Change:Noqueue:syserr (Apache): Can not write to queue directory/var/spool/clientmqueue/(runasgid=48, required=51): Permission Deniedand/var/log/httpd/error_log has no error.chmod 777 Clientmqueue Mail will

The mail server configuration is troublesome because you need to know a lot about the domain name service DNS/Bind, Web sending and receiving emails Apache/PHP/MySQL/SquirrelMail, authentication service LDAP, Kerberos, PAM, emails are usually stored in additional storage but also NFS/SAN, mail service Postfix/Dovecot, anti-spam Postgrey/Clam AV/SpamAssassion, security authentication SSL, monitoring and backup, etc, this set covers almost all aspects o

1. Install sendmailIf you have installed the sendmail 8.11 service in Redhat9 by default, you can ignore the installation process. For more information, see the redhat CD documentation. If the sendmail service is not installed, follow these steps: // Check whether sendmail is installed # Rpm-qa | grep sendmail // Mount

Detailed tutorial on installing and configuring Postfix Mail Service on Ubuntu 14.04Postfix: The mail server used to accept and send mail, the correct statement should be called the Mail Delivery agent (mail Transfer Agent,mta), is the most important part of the mail service;Dovecot:pop and IMAP server, used to manage the local mail directory so that users can log in and download mail through Mail.app, Thunderbird, Mutt and other mail clients (also ca