sendmail daemonportoptions

backup-11 sm-msp-queue[1377]: My unqualified host name (backup-11) unknown; Sleeping for retryOCT 6 23:31:58 backup-11 sendmail[1372]: T96dlphc039178:to=OCT 6 23:32:55 backup-11 sm-msp-queue[1377]: Unable to qualify my own domain name (backup-11) – Using short nameby looking at the above log finally let me find clues, hehe, as follows:Dsn:service unavailableMy unqualified host name (backup-11) unknown; Sleeping for retryUnable to qualify my own domai

running Multicast MTU: 1500 Metric: 1RX packets: 12421 errors: 0 dropped: 0 overruns: 0 frame: 0TX packets: 5 errors: 0 dropped: 0 overruns: 0 carrier: 0Collisions: 0 FIG: 100Interrupt: 10 Base Address: 0xe000Lo link encap: local loopbackInet ADDR: 127.0.0.1 mask: 255.0.0.0Up loopback running MTU: 16436 Metric: 1RX packets: 6 errors: 0 dropped: 0 overruns: 0 frame: 0TX packets: 6 errors: 0 dropped: 0 overruns: 0 carrier: 0Collisions: 0 txqueuelen: 0The eth0 IP address of this host is 192.168.0.

Sendmail server, sendmail server configuration 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 software running in Red Hat Linux 9.0. as a free mail server software, Sendmail has been widely used in a variety

use the Hostanme command to temporarily modify the hostname, hostname aa.com;4.[[email protected] ~]# vi/etc/mail/sendmail.cfFound it:# SMTP Daemon OptionsO daemonportoptions=port=smtp,addr=127.0.0.1, Name=mtaAdd to:# SMTP Daemon OptionsO daemonportoptions=port=smtp,addr= your IP, NAME=MTASave!remember: After modifying hostname need to restart the SendMail servi

Diagnosis case of mail sending failure in Linux SendMail (4): sendmail mail Recently, I encountered another case where SendMail failed to send an email in Linux. After the email is sent, the email cannot receive the specific email. Check the log/var/log/maillog and find "DSN: user unknown "and" dsn = 5.1.1, stat = User unknown "and other error messages. The speci

1. Introduction When you modify the SendMail configuration file/ETC/MAIL/SENDMAIL.MC, the error is generated when you generate the SENDMAIL.CF file using the following command:M4 SENDMAIL.MC > SENDMAIL.CFThe error content is:Sendmail.mc:10:m4:cannot open '/usr/share/sendmail-cf/m4/cf.m4 ': No such file or directory2. Solution Method This error occurs because the software is not installed

SendMail send tls, sendmail send tls This sendMail is a script written in perl.You can view its help information. [root@ST fupeng]# ./sendEmail sendEmail-1.56 by Brandon Zehm Basically, this help information is very detailed. The following is an example of two emails.Eg1, no encrypted email -F is the sender's email address.-T is the recipient's mailbox [Work @

0. There is a very fast wayCommand: hostname itzhanzhang.com, but the restart will not work, so please continue to look down once and for all methods:1. Set your host nameThe default hostname is similar to "Vm_24_76_centos" and the email address is "sent by And we do not like this address, you can modify the/etc/sysconfig/network file, modify the host name, such as my domain name is itzhanzhang.com, I can be modified as: hostname=itzhanzhang.com2. Modify the

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

Sendmail configuration Sendmail is often a "forbidden zone" for general system administrators, because most system users have high requirements and dependencies on e-mail, it can be said that the system manager should be prepared to accept the protests and complaints like snow! Sendmail's "internal mail" seems a little difficult to Sendmail.

Linux Mail Server Postfix, qmaill, and Sendmail competition-Linux Enterprise Application-Linux server application information. For details, see the following. A few years ago, only Sendmail was available for free mail servers in Linux. However, due to the Sendmail defect, some developers have developed several other mail server software. Currently, the free email

A few years ago, only Sendmail was available for free mail servers in Linux. However, due to the Sendmail defect, some developers have developed several other mail server software. Currently, the free email server running in Linux, or the MTA (mail transfer agent), has several options: Sendmail, Qmail, Postfix, Exim, and zmailer. This article will describe the ch

, you can post a local user, a mailing list, a file or a program. Linux Common MDA is NBSP;MAIL.LOCALNBSP;,NBSP;SMRSHNBSP, and procmail (www.procmail.org) 5) Mail access agent (NBSP;MAILNBSP;ACCESSNBSP;AGENTNBSP; MAA) MAA is used to connect users to the System mail library, using POP or IMAP protocols to receive messages. Linux Common MAA has UW-IMAP,Cyrus-IMAP,COURIER-IMAP and so on Mail relay: is when the message is transmitted to the destination address, once the source and destination addre

Problem Configuration of SendMail SendMail is often a "no-go area" for general system managers, because most systems use The need for e-mail and dependence on the degree of high, can be said to be a bit of a mistake, system managers will be ready to accept the snowflakes like flying To the protests and complaints! and sendmail this Dongdong "inner letter", seems

Sendmail Study Notes Ver1.0 -- Linux Enterprise Application-Linux server application information. For more information, see below. Sendmail Study Notes Ver 1.0 Completion Time: 2004-3-30 Author: Jims Http://www.ringkee.com Notes: you are welcome to reprint Install Required Software Sendmail.8.12.10.tar.gz Co., http://www.sendmail.org/ Cyrus-sasl-2.1.18.tar.gz

First we put the DNS server installation OK can be resolved, do not understand the look linux.chinaitlab.com/server/725027.html ">http://linux.chinaitlab.com/server/725027.html 1. First install the required software SendMail [Root@localhost ~]# rpm-q sendmail M4 Sendmail-8.13.1-2 M4-1.4.1-16 has been installed by default and will need to mount the 4th CD-ROM

SendMail is one of the most widely used mail systems under Linux today, although it has some shortcomings, but there are still many companies using it. Learning about it also gives us a deeper understanding of how the messaging system works. Let's take a look at the deployment of the SendMail mail server. This article will explain the SendMail mail system from th

Article Title: how to solve the security problem of the Sendmail server ?. 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. Author: ideal 　　 Sendmail is the most widely used email sending/receiving proxy in Unix environments. Because the

Mail slow and timeout is due to sendmail slow, but sendmail slow and how to solve it? The first step: Of course, check the log: Vim/var/log/maillog June 5 23:26:20 localhost sendmail[1206]: My unqualified host name (localhost) unknown; Sleeping for retryJune 5 23:27:20 localhost sendmail[1206]: Unable to qualify I o

Server clusters running SendMail can provide high performance and high availability at competitive prices. This has always been a common practice for experienced system administrators. This article describes our research to quantify and describe ways to achieve highly available/scalable sendmail. We studied several configurations of SendMail clusters on Linux an