Linux下mail伺服器應用之郵件系統
SMTP，：（Simple Mail Transmission Protocol）簡單郵件傳輸協議，TCP 25埠,smtps
POP3，（Post Office Protocol）第3版郵局協議，TCP 110埠,pops
IMAP4，（Internet Mail Access Protocol）因特網訊息訪問協議，TCP 143埠,imaps
Mine ，MIME：（Multipurpose Internet Mail Extensions）多用途、多功能網際網路郵件擴充套件：以文字的方式對二進位制資料做重新編碼，並能夠實現以文字協議傳送二進位制資料。常用編碼編碼方式：base64.。
v 商業郵件系統
ü Exchange：微軟公司的重量級產品，與Windows系列軟體產品相整合，協作性較好
ü Notes/Domino：IBM公司的商業電子郵件和辦公協作軟體產品，功能豐富、強大，提供跨平臺支援
v 開源郵件系統
ü Sendmail：資格最古老，執行穩定，但安全性欠佳
ü Qmail：有更好的執行效率，配置、管理也很方便
ü Postfix：相容Sendmail，採用模組化設計，在投遞效率、穩定性、服務效能及安全性方面表現優秀
v Sendmail：提供郵件傳送服務（SMTP）
v Dovecot：提供郵件收取服務（POP3）
v Outlook Express
郵件系統角色
MUA（郵件使用者代理）、MTA（郵件傳輸代理）、MDA（郵件分發代理）、MAA（郵件訪問代理）
MUA： (Mail User Agent)： 郵件使用者代理：就是使用者與電子郵件系統的介面，在大多數情況下就是在郵件客戶端上執行的程式。
Windows：outlook express foxmail
Lnux：Thunderbird（雷鳥） evolution
MTA (Mail Transfer Agent)：郵件傳輸代理：主要功能傳送和接收郵件，同時向發件人報告郵件的傳送情況。根據用途可將郵件伺服器分為郵件伺服器（SMTP 伺服器）和接受郵件伺服器（POP3/IMAP4 伺服器）。
windows：電子郵件服務 ，exchange server，mdaemon，lotus notes Linux：sendmail（50%），postfix，qmail
MDA (Mail Delivery Agent)：郵件投遞代理：到本地郵局之後，將郵件放在使用者的郵箱中。可以是MTA 下面的一個小程式，也可以單獨是一個軟體例如procmail，maildrop。
MAA：（Mail Access Agent）（接受伺服器）郵件訪問代理：代為MUA 提供訪問message store 並接收郵件功能的一臺IMAP/POP3 伺服器，常用courrier-imap ，dovecot。
郵件安全：
1.垃圾郵件 反垃圾郵件 SpamAssassin，認證（地址，賬號），正向解析和反向
2.病毒 clamav（查毒）特徵程式碼庫
3.sendmail 郵件呼叫器 mailscanner
SASL：（Simple Authorization Secure Layer）簡單認證安全層協議，用於為沒有提供認證功能的協議提供認證功能。軟體包：cyus-sasl，程序：saslauthd。
整合STMP，clainav（掃描病毒），SpamAssassin（apache 提供，掃描垃圾郵件）的工具成稱之為caller（呼叫器）。常見呼叫器Caller：mimedefang Mailscanner amavisd-new。
郵箱型別：
mbox 所有郵件放在同一個檔案中，新郵件直接追加在檔案後面。
maildir 建一個目錄，每一封郵件被當成一個單獨檔案存放在目錄裡
redhat 預設使用mbox 方式，sendmail 預設使用mbox，postfix 預設兩種都支援。
SMIME：提供端到端的郵件加密解密協議。
sendmail郵件系統
sendmail所需軟體包：
sendmail-8.13.8-2.el5.i386.rpm #必選，主程式包
sendmail-cf-8.13.8-2.el5.i386.rpm #必選，配置檔案包
sendmail-devel-8.13.8-2.el5.i386.rpm
sendmail-doc-8.13.8-2.el5.i386.rpm
m4-1.4.5-3.el5.1.i386.rpm #m4工具包
Sendmail服務軟體包
sendmail-8.13.8-2.el5.i386.rpm：sendmail服務的主程式包，伺服器端必須安裝該軟體包。
sendmail-cf-8.13.8-2.el5.i386.rpm：sendmail巨集檔案包
sendmail-devel-8.13.8-2.el5.i386.rpm：sendmail伺服器開發工具軟體包
sendmail-doc-8.13.8-2.el5.i386.rpm：sendmail伺服器的說明文件
m4-1.4.5-3.el5.1.i386.rpm：巨集處理過慮軟體包
dovecot-1.0-1.2.rc15.el5.i386.rpm：接收郵件軟體包，安裝時需要注意安裝順序
Sendmail相關配置文件
sendmail.cf：sendmail核心配置檔案，位於/etc/mail/sendmail/sendmail.cf
sendmail.mc：sendmail提供sendmail檔案模板，通過編輯此檔案後再使用m4工具將結果匯入sendmail.cf完成配置sendmail核心配置檔案，降低配置複雜度，位於/etc/mail/sendmail.mc
local-host-name：定義收發郵件伺服器的域名和主機別名，位於/etc/mail/local-host-name
access.db：用來設定sendmail伺服器為哪些主機進行轉發郵件,位於/etc/mail/access.db
aliases.db：用來定義郵箱別名，位於/etc/mail/aliases.db
virtusertable.db：用來設定虛擬賬戶，位於/etc/mail/virtusertable.db
圖形化webmin管理sendmail伺服器：
使用webmin管理linux的sendmail服務
到webmin的官方網站下載webmin軟體：
Webmin官網：http://www.webmin.com/
配置步驟：
我下載的是webmin-1.580-1.noarch.rpm我把它放到/root目錄下了。
[[email protected] ~]# rpm -ivh webmin-1.580-1.noarch.rpm
[[email protected] ~]# service webmin start
[[email protected] ~]# service webmin status
Webmin (pid 5388) is running
注：webmin預設埠為10000.
其它資料：
①．linux中啟動sendmail很慢的解決方法
linux 系統啟動時，發現sendmail啟動很慢，發現是/etc/hosts檔案沒有添另hostname名稱.
1、修改之前
127.0.0.1 localhost
2、修改之後
127.0.0.1 localhost mailserver
重啟系統，發現sendmail啟動的進候變快了.
②．sendmail錯誤cannot open `/usr/share/sendmail-cf/m4/cf.m4
配置sendmail，生成配置檔案時，出現以下錯誤：
[[email protected] mail]# m4 sendmail.mc >sendmail.cf
sendmail.mc:10: m4: cannot open `/usr/share/sendmail-cf/m4/cf.m4': No such file or directory
通過安裝sendmail-cf解決
[[email protected] mail]# yum -y install sendmail-cf
③．問題：使用 命令 mail -s "sdf" [email protected] </root/install.log 發不了郵件。
檢視日誌報錯：/var/log/maillog
My unqualified host name (localhost) unknown; sleeping for retry
問題原因：sendmail配置檔案有問題。
修改sendmail配置檔案
#Dj$w.Foo.COM
Djlocalhost.localdomain ------------>新增
重啟sendmail
sendmail郵件系統的一個案例
實驗拓撲
① :在mail.bj.com安裝sendmail並進行簡單配置
[[email protected] ~]# mkdir /mnt/cdrom
[[email protected] ~]# mount /dev/cdrom /mnt/cdrom/
mount: block device /dev/cdrom is write-protected, mounting read-only
[[email protected] ~]# cd /mnt/cdrom/Server/
[[email protected] Server]# rpm -qa |grep -E "sendmail|m4"
m4-1.4.5-3.el5.1
sendmail-8.13.8-2.el5
[[email protected] Server]# rpm -ivh sendmail-
sendmail-8.13.8-2.el5.i386.rpm #主程式包
sendmail-cf-8.13.8-2.el5.i386.rpm #配置工具包
sendmail-devel-8.13.8-2.el5.i386.rpm
sendmail-doc-8.13.8-2.el5.i386.rpm
[[email protected] Server]# rpm -ivh sendmail-cf-8.13.8-2.el5.i386.rpm
[[email protected] Server]# cd /etc/mail/
[[email protected] mail]# ls
Makefile domaintable.db mailertable.db submit.mc
access helpfile sendmail.cf trusted-users
access.db local-host-names sendmail.mc virtusertable
domaintable mailertable submit.cf virtusertable.db
編輯主要配置檔案：
[[email protected] mail]# vim sendmail.mc
116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
[[email protected] ~]# netstat -tupln |grep sendmail
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3407/sendmail: acce
[[email protected] ~]# service sendmail restart
[[email protected] ~]# netstat -tupln |grep sendmail
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 4440/sendmail: acce
中繼檔案：
[[email protected] mail]# vim access #增加10，11,12行
9 Connect:127.0.0.1 RELAY
10 Connect:10.106.6 RELAY
11 bj.com OK
12 sh.com RELAY
表明郵件伺服器的域名：
[[email protected] mail]# vim local-host-names
增加：bj.com
重新啟動sendmail伺服器：
[[email protected] mail]# chkconfig sendmail on
[[email protected] mail]# service sendmail restart
Shutting down sm-client: [ OK ]
Shutting down sendmail: [ OK ]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]
新建賬戶：
[[email protected] ~]# useradd user1
[[email protected] ~]# useradd user2
[[email protected] ~]# echo "123" |passwd --stdin user1
[[email protected] ~]# echo "123" |passwd --stdin user2
② ：搭建dns伺服器，並作相關配置：
[[email protected] ~]# cd /mnt/cdrom/Server/
[[email protected] Server]# rpm -ivh bind-9.3.4-10.P1.el5.i386.rpm
[[email protected] Server]# rpm -ivh bind-chroot-9.3.4-10.P1.el5.i386.rpm
[[email protected]]# rpm -ivh caching-nameserver-9.3.4-10.P1.el5.i386.rpm
[[email protected] Server]# cd /var/named/chroot/etc/
[[email protected] etc]# ll
[[email protected] etc]# cp -p named.caching-nameserver.conf named.conf
[[email protected] etc]# vim named.conf
15 listen-on port 53 { any; };
27 allow-query { any; };
36 match-clients { any; };
37 match-destinations { any; };
[[email protected] etc]# vim named.rfc1912.zones
增加以下幾行：
20 zone "bj.com" IN {
21 type master;
22 file "bj.com.db";
23 allow-update { none; };
24 };
[[email protected] etc]# cd ../var/named/
[[email protected] named]# ll
[[email protected] named]# cp -p localhost.zone bj.com.db
[[email protected] named]# vim bj.com.db
2 @ IN SOA ns.bj.com. root (
9 @ IN NS ns.bj.com.
10 ns IN A 10.106.6.254
11 mail IN A 10.106.6.254
12 pop3 IN CNAME mail
13 smtp IN CNAME mail
14 @ IN MX 10 mail
[[email protected] named]# chkconfig named on
[[email protected] named]# service named start
Starting named: [ OK ]
③ ：客戶端測試dns解析，進行簡單配置：
④ ：進行配置，並安裝接收dovecot伺服器：
進行系統配置：
[[email protected] named]# vim /etc/resolv.conf
1 nameserver 10.106.6.254
[[email protected] named]# vim /etc/sysconfig/network
3 HOSTNAME=mail.bj.com
[[email protected] named]# vim /etc/hosts
127.0.0.1 mail.bj.com localhost.localdomain localh ost
[[email protected] named]#init 6
[[email protected] ~]# yum install -y dovecot
[[email protected] ~]# chkconfig dovecot on
[[email protected] ~]# service dovecot start
Starting Dovecot Imap: [ OK ] [[email protected] ~]# netstat -tupln |grep dovecot
（110,143,993（imaps）,995（pop3s））
⑤ ：bj.com客戶端傳送資訊測試：（使用foxmail）
user1給user1傳送資訊：
user1給user2傳送資訊：
日誌分析：
Mar 23 10:45:50 mail sendmail[3938]: q2N2jovd003938: from=<[email protected]>, size=1430, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[10.106.6.190]
Mar 23 10:45:50 mail sendmail[3939]: q2N2jovd003938: to=<[email protected]>, ctladdr=<[email protected]> (501/501), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31594, dsn=2.0.0, stat=Sent
Mar 23 10:46:08 mail dovecot: pop3-login: Login: user=<user1>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 10:46:09 mail dovecot: POP3(user1): Disconnected: Logged out top=0/0, retr=1/1696, del=0/1, size=1679
Mar 23 10:58:20 mail sendmail[4012]: q2N2wKKs004012: from=<[email protected]>, size=1481, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[10.106.6.190]
Mar 23 10:58:20 mail sendmail[4013]: q2N2wKKs004012: to=<[email protected]>, ctladdr=<[email protected]> (501/501), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31645, dsn=2.0.0, stat=Sent
Mar 23 10:59:09 mail dovecot: pop3-login: Aborted login: user=<[email protected]>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 10:59:09 mail dovecot: pop3-login: Login: user=<user2>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 10:59:09 mail dovecot: POP3(user2): Disconnected: Logged out top=0/0, retr=1/1748, del=0/2, size=3448
⑥ ：配置mail.sh.com上海伺服器：
安裝sendmail
[[email protected] ~]# mkdir /mnt/cdrom
[[email protected] ~]# mount /dev/cdrom /mnt/cdrom/
[[email protected] ~]# cd /mnt/cdrom/Server/
[[email protected] Server]# rpm -qa |grep -E "sendmail|m4"
[[email protected] Server]# rpm -ivh sendmail-cf-8.13.8-2.el5.i386.rpm
[[email protected] Server]# cd /etc/mail/
[[email protected] mail]# ls
編輯主要配置檔案：
[[email protected] mail]# vim sendmail.mc
116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
[[email protected] ~]# netstat -tupln |grep sendmail
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3607/sendmail: acce
[[email protected] ~]# service sendmail restart
[[email protected] ~]# netstat -tupln |grep sendmail
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 3528/sendmail: acce
中繼檔案：
[[email protected] mail]# vim access #增加10，11,12行
9 Connect:127.0.0.1 RELAY
10 Connect:10.106.6 RELAY
11 sh.com OK
12 bj.com RELAY
表明郵件伺服器的域名：
[[email protected] mail]# vim local-host-names
增加：sh.com
重新啟動sendmail伺服器：
[[email protected] mail]#chkconfig sendmail on
[[email protected] mail]# service sendmail restart
Shutting down sm-client: [ OK ]
Shutting down sendmail: [ OK ]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]
新建賬戶：
[[email protected] ~]# useradd user3
[[email protected] ~]# useradd user4
[[email protected] ~]# echo "123" |passwd --stdin user3
[[email protected] ~]# echo "123" |passwd --stdin user4
⑦ ：搭建mail.sh.com的dns伺服器，並作相關配置：
[[email protected] ~]# cd /mnt/cdrom/Server/
[[email protected] Server]# rpm -ivh bind-9.3.4-10.P1.el5.i386.rpm
[[email protected] Server]# rpm -ivh bind-chroot-9.3.4-10.P1.el5.i386.rpm
[[email protected]]# rpm -ivh caching-nameserver-9.3.4-10.P1.el5.i386.rpm
[[email protected] Server]# cd /var/named/chroot/etc/
[[email protected] etc]# ll
[[email protected] etc]# cp -p named.caching-nameserver.conf named.conf
[[email protected] etc]# vim named.conf
15 listen-on port 53 { any; };
27 allow-query { any; };
36 match-clients { any; };
37 match-destinations { any; };
[[email protected] etc]# vim named.rfc1912.zones
增加以下幾行：
20 zone "sh.com" IN {
21 type master;
22 file "sh.com.db";
23 allow-update { none; };
24 };
[[email protected] etc]# cd ../var/named/
[[email protected] named]# ll
[[email protected] named]# cp -p localhost.zone sh.com.db
[[email protected] named]# vim sh.com.db
2 @ IN SOA ns.sh.com. root (
9 @ IN NS ns.sh.com.
10 ns IN A 10.106.6.253
11 @ IN MX 10 mail
12 mail IN A 10.106.6.253
13 pop3 IN CNAME mail
14 smtp IN CNAME mail
[[email protected] named]# chkconfig named on
[[email protected] named]# service named start
Starting named: [ OK ]
客戶端測試dns解析：
⑧ ：在sh.com進行系統配置，並安裝接收伺服器：
[[email protected] named]# vim /etc/resolv.conf
1 nameserver 10.106.6.253
[[email protected] named]# vim /etc/sysconfig/network
3 HOSTNAME=mail.sh.com
[[email protected] named]# vim /etc/hosts
127.0.0.1 mail.sh.com localhost.localdomain localh ost
[[email protected] named]#init 6
安裝接受伺服器：
[[email protected] ~]# yum install -y dovecot
[[email protected] ~]# chkconfig dovecot on
[[email protected] ~]# service dovecot start
Starting Dovecot Imap: [ OK ] [[email protected] ~]# netstat -tupln |grep dovecot
（110,143,993（imaps）,995（pop3s））
⑨ ：sh.com的客戶端測試，user3給user4發信息：
⑩ ：做dns轉發和配置反向解析
在mail.bj.com上做dns轉發和反向解析：
[[email protected] ~]# cd /var/named/chroot/etc/
[[email protected] etc]# vim named.conf
28 forwarders { 10.106.6.253; };
[[email protected] etc]# rndc reload
server reload successful
[[email protected] etc]# vim named.rfc1912.zones
55 zone "6.106.10.in-addr.arpa" IN {
56 type master;
57 file "10.106.6.db";
58 allow-update { none; };
59 };
[[email protected] etc]# cd ../var/named/
[[email protected] named]# ll
[[email protected] named]# cp -p named.local 10.106.6.db
[[email protected] named]# vim 10.106.6.db
254 IN PTR mail.bj.com.
153 IN PTR mail.sh.com.
[[email protected] named]# rndc reload
server reload successful
在mail.sh.com上做dns轉發和反向解析：
[[email protected] ~]# cd /var/named/chroot/etc/
[[email protected] etc]# vim named.conf
28 forwarders { 10.106.6.254; };
[[email protected] etc]# rndc reload
server reload successful
[[email protected] etc]# vim named.rfc1912.zones
55 zone "6.106.10.in-addr.arpa" IN {
56 type master;
57 file "10.106.6.db";
58 allow-update { none; };
59 };
[[email protected] etc]# cd ../var/named/
[[email protected] named]# ll
[[email protected] named]# cp -p named.local 10.106.6.db
[[email protected] named]# vim 10.106.6.db
254 IN PTR mail.bj.com.
153 IN PTR mail.sh.com.
[[email protected] named]# rndc reload
server reload successful
? :測試通訊情況
（bj.com的客戶[email protected]與sh.com的客戶[email protected]通訊）
? ：監控的日誌資訊：
mail.bj.com的日誌資訊：
[[email protected] ~]# tail -f /var/log/maillog
Mar 23 15:46:07 mail dovecot: pop3-login: Aborted login: user=<[email protected]>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 15:46:07 mail dovecot: pop3-login: Login: user=<user2>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 15:46:07 mail dovecot: POP3(user2): Disconnected: Logged out top=0/0, retr=0/0, del=0/3, size=5025
Mar 23 15:46:13 mail sendmail[2298]: q2N7kCbh002298: from=<[email protected]>, size=1458, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[10.106.6.190]
Mar 23 15:46:16 mail sendmail[2300]: q2N7kCbh002298: to=<[email protected]>, ctladdr=<[email protected]> (500/500), delay=00:00:03, xdelay=00:00:03, mailer=esmtp, pri=121458, relay=mail.sh.com. [10.106.6.253], dsn=2.0.0, stat=Sent (q2N8W6jM003583 Message accepted for delivery)
Mar 23 15:48:38 mail sendmail[2307]: q2N7mc6a002307: from=<[email protected]>, size=3353, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[10.106.6.253]
Mar 23 15:48:38 mail sendmail[2308]: q2N7mc6a002307: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=33514, dsn=2.0.0, stat=Sent
Mar 23 15:48:54 mail dovecot: pop3-login: Aborted login: user=<[email protected]>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 15:48:54 mail dovecot: pop3-login: Login: user=<user1>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 15:48:54 mail dovecot: POP3(user1): Disconnected: Logged out top=0/0, retr=1/3623, del=0/1, size=3606
Mar 23 15:51:04 mail sendmail[2320]: q2N7p4Pg002320: from=<[email protected]>, size=1470, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[10.106.6.190]
Mar 23 15:51:04 mail sendmail[2322]: q2N7p4Pg002320: to=<[email protected]>, ctladdr=<[email protected]> (500/500), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=121470, relay=mail.sh.com. [10.106.6.253], dsn=2.0.0, stat=Sent (q2N8aucK003603 Message accepted for delivery)
Mar 23 15:52:25 mail sendmail[2325]: q2N7qPlW002325: from=<[email protected]>, size=3514, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=[10.106.6.253]
Mar 23 15:52:25 mail sendmail[2326]: q2N7qPlW002325: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=33675, dsn=2.0.0, stat=Sent
Mar 23 15:52:34 mail dovecot: pop3-login: Aborted login: user=<[email protected]>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 15:52:34 mail dovecot: pop3-login: Login: user=<user1>, method=PLAIN, rip=::ffff:10.106.6.190, lip=::ffff:10.106.6.254
Mar 23 15:52:34 mail dovecot: POP3(user1): Disconnected: Logged out top=0/0, retr=1/3786, del=0/2, size=7375
mail.sh.com的日誌資訊：
[[email protected] ~]# tail -f /var/log/maillog
Mar 23 16:24:06 mail dovecot: pop3-login: Login: user=<user3>, method=PLAIN, rip=::ffff:10.106.6.200, lip=::ffff:10.106.6.253
Mar 23 16:24:06 mail dovecot: POP3(user3): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Mar 23 16:24:07 mail dovecot: pop3-login: Login: user=<user4>, method=PLAIN, rip=::ffff:10.106.6.200, lip=::ffff:10.106.6.253
Mar 23 16:24:07 mail dovecot: POP3(user4): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Mar 23 16:32:07 mail sendmail[3583]: q2N8W6jM003583: from=<[email protected]>, size=1617, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=mail.bj.com [10.106.6.254]
Mar 23 16:32:08 mail sendmail[3584]: q2N8W6jM003583: to=<[email protected]>, delay=00:00:01, xdelay=00:00:01, mailer=local, pri=31791, dsn=2.0.0, stat=Sent
Mar 23 16:32:51 mail dovecot: pop3-login: Login: user=<user3>, method=PLAIN, rip=::ffff:10.106.6.200, lip=::ffff:10.106.6.253
Mar 23 16:32:51 mail dovecot: POP3(user3): Disconnected: Logged out top=0/0, retr=1/1898, del=1/1, size=1881
Mar 23 16:34:29 mail sendmail[3595]: q2N8YTvQ003595: from=<[email protected]>, size=3193, class=0, nrcpts=1, msgid=<[email protected]>, proto=SMTP, daemon=MTA, relay=[10.106.6.200]
Mar 23 16:34:29 mail sendmail[3597]: q2N8YTvQ003595: to=<[email protected]>, ctladdr=<[email protected]> (500/500), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=123193, relay=mail.bj.com. [10.106.6.254], dsn=2.0.0, stat=Sent (q2N7mc6a002307 Message accepted for delivery)
Mar 23 16:36:56 mail sendmail[3603]: q2N8aucK003603: from=<[email protected]>, size=1629, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=mail.bj.com [10.106.6.254]
Mar 23 16:36:56 mail sendmail[3604]: q2N8aucK003603: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31803, dsn=2.0.0, stat=Sent
Mar 23 16:37:04 mail dovecot: pop3-login: Login: user=<user3>, method=PLAIN, rip=::ffff:10.106.6.200, lip=::ffff:10.106.6.253
Mar 23 16:37:04 mail dovecot: POP3(user3): Disconnected: Logged out top=0/0, retr=1/1909, del=1/1, size=1892
Mar 23 16:38:16 mail sendmail[3611]: q2N8cGVM003611: from=<[email protected]>, size=3354, class=0, nrcpts=1, msgid=<[email protected]>, proto=SMTP, daemon=MTA, relay=[10.106.6.200]
Mar 23 16:38:16 mail sendmail[3613]: q2N8cGVM003611: to=<[email protected]>, ctladdr=<[email protected]> (500/500), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=123354, relay=mail.bj.com. [10.106.6.254], dsn=2.0.0, stat=Sent (q2N7qPlW002325 Message accepted for delivery)
轉載於:https://blog.51cto.com/jinjianping/996904