2024年4月21日发(作者：)

SMTP发送邮件测试

（无SMTP用户认证）

Windows XP 上使用命令登录邮件服务器发送邮件：

登录邮件服务器

没有身份验证，直接

以用户xp的身份发

送邮件到我的邮箱

使用Foxmail接收到邮件：

通过互联网收到了

邮件

1

在Linux邮件服务器上使用命令发送邮件：

[root@mail ~]# telent localhost 25

bash: telent: command not found

[root@mail ~]# telnet localhost 25

Trying 127.0.

Connected to omain (127.0.0.1).

Escape character is '^]'.

没有身份验证，直接以用

220 ESMTP Postfix

户qq@的身份发送

helo localhost

250

mail from: qq@

250 2.1.0 Ok

邮件到我的邮箱

rcpt to: @

250 2.1.5 Ok

data

354 End data with .

subject: mail test

this is test mail, come form qq@

.

250 2.0.0 Ok: queued as 7FC182683D6

quit

221 2.0.0 Bye

Connection closed by foreign host.

[root@mail ~]#

使用Foxmail接收到邮件：

通过互联网收到

了邮件

2

在Linux服务器上给系统邮件用户lisi发送邮件：

[root@mail ~]# telnet localhost 25

Trying 127.0.

Connected to omain (127.0.0.1).

Escape character is '^]'.

220 ESMTP Postfix

helo localhost

250

mail from: admin@

250 2.1.0 Ok

rcpt to: lisi@

250 2.1.5 Ok

data

354 End data with .

subject: test mail

Hello!

this is a test mail, come from .

.

250 2.0.0 Ok: queued as 5AF0B2683D6

quit

221 2.0.0 Bye

Connection closed by foreign host.

[root@mail ~]#

在Linux服务器上使用POP3接收邮件测试：

3

[root@mail ~]# telnet localhost 110

Trying 127.0.

Connected to omain (127.0.0.1).

Escape character is '^]'.

+OK Dovecot ready.

user lisi

+OK

pass a

+OK Logged in.

list

+OK 1 messages:

1 497

.

retr 1

+OK 497 octets

Return-Path:

X-Original-To: lisi@

Delivered-To: lisi@

Received: from localhost (omain [127.0.0.1])

by (Postfix) with SMTP id 5AF0B2683D6

for ; Wed, 22 Dec 2010 21:37:57 +0800 (CST)

subject: test mail

Message-Id: <21.5AF0B2683D6@>

Date: Wed, 22 Dec 2010 21:37:57 +0800 (CST)

From: admin@

To: undisclosed-recipients:;

Hello!

this is a test mail, come from .

.

quit

+OK Logging out.

Connection closed by foreign host.

[root@mail ~]#

4