v 郵件應用協議
SMTP,:(Simple Mail Transmission Protocol)簡單郵件傳輸協議,TCP 25端口,smtps
POP3,(Post Office Protocol)第3版郵局協議,TCP 110端口,pops
IMAP4,(Internet Mail Access Protocol)因特網消息訪問協議,TCP 143端口,imaps
Mine ,MIME:(Multipurpose Internet Mail Extensions)多用途、多功能互聯網郵件擴展:以文本的方式對二進制數據做重新編碼,並能夠實現以文本協議發送二進制數據。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系列軟件產品相集成,協作性較好
ü Notes/Domino:IBM公司的商業電子郵件和辦公協作軟件產品,功能豐富、強大,提供跨平臺支持
v 開源郵件系統
ü Sendmail:資格最古老,運行穩定,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:兼容Sendmail,採用模塊化設計,在投遞效率、穩定性、服務性能及安全性方面表現優秀
v Sendmail:提供郵件發送服務(SMTP)
v Dovecot:提供郵件收取服務(POP3)
v Outlook Express:用於收發信的客戶端工具
郵件系統角色
MUA(郵件用戶代理)、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): 郵件用戶代理:就是用戶與電子郵件系統的接口,在大多數情況下就是在郵件客戶端上運行的程序。
Windows:outlook express foxmail
Lnux:Thunderbird(雷鳥) evolution
MTA (Mail Transfer Agent):郵件傳輸代理:主要功能發送和接收郵件,同時向發件人報告郵件的傳送情況。根據用途可將郵件服務器分爲郵件服務器(SMTP 服務器)和接受郵件服務器(POP3/IMAP4 服務器)。
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,將郵件放在用戶的郵箱中。可以是MTA 下面的一個小程序,也可以單獨是一個軟件例如procmail,maildrop。
MAA:(Mail Access Agent)(接受服務器)郵件訪問代理:代爲MUA 提供訪問message store 並接收郵件功能的一臺IMAP/POP3 服務器,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)特徵代碼庫
3.sendmail 郵件呼叫器 mailscanner
SASL:(Simple Authorization Secure Layer)簡單認證安全層協議,用於爲沒有提供認證功能的協議提供認證功能。軟件包:cyus-sasl,進程:saslauthd。
整合STMP,clainav(掃描病毒),SpamAssassin(apache 提供,掃描垃圾郵件)的工具成稱之爲caller(調用器)。常見調用器Caller:mimedefang Mailscanner amavisd-new。
郵箱類型:
mbox 所有郵件放在同一個文件中,新郵件直接追加在文件後面。
maildir 建一個目錄,每一封郵件被當成一個單獨文件存放在目錄裏
redhat 默認使用mbox 方式,sendmail 默認使用mbox,postfix 默認兩種都支持。
SMIME:提供端到端的郵件加密解密協議。
sendmail郵件系統
sendmail所需軟件包:
sendmail-8.13.8-2.el5.i386.rpm #必選,主程序包
sendmail-cf-8.13.8-2.el5.i386.rpm #必選,配置文件包
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服務軟件包
sendmail-8.13.8-2.el5.i386.rpm:sendmail服務的主程序包,服務器端必須安裝該軟件包。
sendmail-cf-8.13.8-2.el5.i386.rpm:sendmail宏文件包
sendmail-devel-8.13.8-2.el5.i386.rpm:sendmail服務器開發工具軟件包
sendmail-doc-8.13.8-2.el5.i386.rpm:sendmail服務器的說明文檔
m4-1.4.5-3.el5.1.i386.rpm:宏處理過慮軟件包
dovecot-1.0-1.2.rc15.el5.i386.rpm:接收郵件軟件包,安裝時需要注意安裝順序
Sendmail相關配置文檔
sendmail.cf:sendmail核心配置文件,位於/etc/mail/sendmail/sendmail.cf
sendmail.mc:sendmail提供sendmail文件模板,通過編輯此文件後再使用m4工具將結果導入sendmail.cf完成配置sendmail核心配置文件,降低配置複雜度,位於/etc/mail/sendmail.mc
local-host-name:定義收發郵件服務器的域名和主機別名,位於/etc/mail/local-host-name
access.db:用來設置sendmail服務器爲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:用來設置虛擬賬戶,位於/etc/mail/virtusertable.db
圖形化webmin管理sendmail服務器:
使用webmin管理linux的sendmail服務
到webmin的官方網站下載webmin軟件:
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。
[root@mail ~]# rpm -ivh webmin-1.580-1.noarch.rpm
[root@mail ~]# service webmin start
[root@mail ~]# service webmin status
Webmin (pid 5388) is running
注:webmin默認端口爲10000.
其它資料:
①.linux中啓動sendmail很慢的解決方法
linux 系統啓動時,發現sendmail啓動很慢,發現是/etc/hosts文件沒有添另hostname名稱.
1、修改之前
127.0.0.1 localhost
2、修改之後
127.0.0.1 localhost mailserver
重啓系統,發現sendmail啓動的進候變快了.
②.sendmail錯誤cannot open `/usr/share/sendmail-cf/m4/cf.m4
配置sendmail,生成配置文件時,出現以下錯誤:
[root@server 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
[root@server 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。
查看日誌報錯:/var/log/maillog
My unqualified host name (localhost) unknown; sleeping for retry
問題原因:sendmail配置文件有問題。
修改sendmail配置文件
#Dj$w.Foo.COM
Djlocalhost.localdomain ------------>添加
重啓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
[root@mail ~]# mkdir /mnt/cdrom
[root@mail ~]# mount /dev/cdrom /mnt/cdrom/
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@mail ~]# cd /mnt/cdrom/Server/
[root@mail Server]# rpm -qa |grep -E "sendmail|m4"
m4-1.4.5-3.el5.1
sendmail-8.13.8-2.el5
[root@mail Server]# rpm -ivh sendmail-
sendmail-8.13.8-2.el5.i386.rpm #主程序包
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
[root@junjie Server]# rpm -ivh sendmail-cf-8.13.8-2.el5.i386.rpm
[root@mail Server]# cd /etc/mail/
[root@mail 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
編輯主要配置文件:
[root@mail mail]# vim sendmail.mc
116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
[root@mail ~]# netstat -tupln |grep sendmail
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3407/sendmail: acce
[root@mail ~]# service sendmail restart
[root@mail ~]# netstat -tupln |grep sendmail
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 4440/sendmail: acce
中繼文件:
[root@mail 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
表明郵件服務器的域名:
[root@mail mail]# vim local-host-names
增加:bj.com
重新啓動sendmail服務器:
[root@mail mail]# chkconfig sendmail on
[root@mail mail]# service sendmail restart
Shutting down sm-client: [ OK ]
Shutting down sendmail: [ OK ]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]
新建賬戶:
[root@mail ~]# useradd user1
[root@mail ~]# useradd user2
[root@mail ~]# echo "123" |passwd --stdin user1
[root@mail ~]# echo "123" |passwd --stdin user2
② :搭建dns服務器,並作相關配置:
[root@mail ~]# cd /mnt/cdrom/Server/
[root@mail Server]# rpm -ivh bind-9.3.4-10.P1.el5.i386.rpm
[root@mail 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
[root@mail Server]# cd /var/named/chroot/etc/
[root@mail etc]# ll
[root@mail etc]# cp -p named.caching-nameserver.conf named.conf
[root@mail etc]# vim named.conf
15 listen-on port 53 { any; };
27 allow-query { any; };
36 match-clients { any; };
37 match-destinations { any; };
[root@mail 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 };
[root@mail etc]# cd ../var/named/
[root@mail named]# ll
[root@mail named]# cp -p localhost.zone bj.com.db
[root@mail 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
[root@mail named]# chkconfig named on
[root@mail 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服務器:
進行系統配置:
[root@mail named]# vim /etc/resolv.conf
1 nameserver 10.106.6.254
[root@mail named]# vim /etc/sysconfig/network
3 HOSTNAME=mail.bj.com
[root@mail named]# vim /etc/hosts
127.0.0.1 mail.bj.com localhost.localdomain localh ost
[root@mail named]#init 6
[root@mail ~]# yum install -y dovecot
[root@mail ~]# chkconfig dovecot on
[root@mail ~]# service dovecot start
Starting Dovecot Imap: [ OK ] [root@mail ~]# netstat -tupln |grep dovecot
(110,143,993(imaps),995(pop3s))
⑤ :bj.com客戶端發送信息測試:(使用foxmail)
user1給user1發送信息:
user1給user2發送信息:
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上海服務器:
安裝sendmail
[root@mail ~]# mkdir /mnt/cdrom
[root@mail ~]# mount /dev/cdrom /mnt/cdrom/
[root@mail ~]# cd /mnt/cdrom/Server/
[root@mail Server]# rpm -qa |grep -E "sendmail|m4"
[root@junjie Server]# rpm -ivh sendmail-cf-8.13.8-2.el5.i386.rpm
[root@mail Server]# cd /etc/mail/
[root@mail mail]# ls
編輯主要配置文件:
[root@mail mail]# vim sendmail.mc
116 DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')dnl
[root@mail ~]# netstat -tupln |grep sendmail
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3607/sendmail: acce
[root@mail ~]# service sendmail restart
[root@mail ~]# netstat -tupln |grep sendmail
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 3528/sendmail: acce
中繼文件:
[root@mail 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
表明郵件服務器的域名:
[root@mail mail]# vim local-host-names
增加:sh.com
重新啓動sendmail服務器:
[root@mail mail]#chkconfig sendmail on
[root@mail mail]# service sendmail restart
Shutting down sm-client: [ OK ]
Shutting down sendmail: [ OK ]
Starting sendmail: [ OK ]
Starting sm-client: [ OK ]
新建賬戶:
[root@mail ~]# useradd user3
[root@mail ~]# useradd user4
[root@mail ~]# echo "123" |passwd --stdin user3
[root@mail ~]# echo "123" |passwd --stdin user4
⑦ :搭建mail.sh.com的dns服務器,並作相關配置:
[root@mail ~]# cd /mnt/cdrom/Server/
[root@mail Server]# rpm -ivh bind-9.3.4-10.P1.el5.i386.rpm
[root@mail 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
[root@mail Server]# cd /var/named/chroot/etc/
[root@mail etc]# ll
[root@mail etc]# cp -p named.caching-nameserver.conf named.conf
[root@mail etc]# vim named.conf
15 listen-on port 53 { any; };
27 allow-query { any; };
36 match-clients { any; };
37 match-destinations { any; };
[root@mail 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 };
[root@mail etc]# cd ../var/named/
[root@mail named]# ll
[root@mail named]# cp -p localhost.zone sh.com.db
[root@mail 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
[root@mail named]# chkconfig named on
[root@mail 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,並安裝接收服務器:
[root@mail named]# vim /etc/resolv.conf
1 nameserver 10.106.6.253
[root@mail named]# vim /etc/sysconfig/network
3 HOSTNAME=mail.sh.com
[root@mail named]# vim /etc/hosts
127.0.0.1 mail.sh.com localhost.localdomain localh ost
[root@mail named]#init 6
安裝接受服務器:
[root@mail ~]# yum install -y dovecot
[root@mail ~]# chkconfig dovecot on
[root@mail ~]# service dovecot start
Starting Dovecot Imap: [ OK ] [root@mail ~]# 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:
[root@mail ~]# cd /var/named/chroot/etc/
[root@mail etc]# vim named.conf
28 forwarders { 10.106.6.253; };
[root@mail etc]# rndc reload
server reload successful
[root@mail 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 };
[root@mail etc]# cd ../var/named/
[root@mail named]# ll
[root@mail named]# cp -p named.local 10.106.6.db
[root@mail named]# vim 10.106.6.db
254 IN PTR mail.bj.com.
153 IN PTR mail.sh.com.
[root@mail named]# rndc reload
server reload successful
在mail.sh.com上做dns轉發和反向解析:
[root@mail ~]# cd /var/named/chroot/etc/
[root@mail etc]# vim named.conf
28 forwarders { 10.106.6.254; };
[root@mail etc]# rndc reload
server reload successful
[root@mail 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 };
[root@mail etc]# cd ../var/named/
[root@mail named]# ll
[root@mail named]# cp -p named.local 10.106.6.db
[root@mail named]# vim 10.106.6.db
254 IN PTR mail.bj.com.
153 IN PTR mail.sh.com.
[root@mail named]# rndc reload
server reload successful
? :測試通信情況
(bj.com的客戶[email protected]與sh.com的客戶[email protected]通信)
? :監控的日誌信息:
mail.bj.com的日誌信息:
[root@mail ~]# 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=<001a01cd08cf$bcf83cd0$c8066a0a@hp3aea877158e2>, 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=<002401cd08d0$4378c360$c8066a0a@hp3aea877158e2>, 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的日誌信息:
[root@mail ~]# 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=<001a01cd08cf$bcf83cd0$c8066a0a@hp3aea877158e2>, 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=<002401cd08d0$4378c360$c8066a0a@hp3aea877158e2>, 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)