POSTFIX本地可以发信，但是外网用OUTLOOK发信一直报 554 5.7.1 <a@bc.com>: Relay acce

[root@calpsv04 log]# postconf -n

alias_database = hash:/etc/aliases

alias_maps = hash:/etc/aliases

broken_sasl_auth_clients = yes

command_directory = /usr/sbin

config_directory = /etc/postfix

daemon_directory = /usr/libexec/postfix

data_directory = /var/lib/postfix

debug_peer_level = 2

home_mailbox = Maildir/

html_directory = no

inet_interfaces = all

inet_protocols = ipv4

local_recipient_maps = 

mail_owner = postfix

mail_spool_directory = /var/spool/mail

mailbox_transport = lmtp:unix:/var/lib/imap/socket/lmtp

mailq_path = /usr/bin/mailq.postfix

manpage_directory = /usr/share/man

message_size_limit = 15728640

mydestination = $myhostname, localhost.$mydomain, localhost,$mydomain

mydomain = apmro.com.sg

myhostname = mail.apmro.com.sg

mynetworks = 172.28.2.0/24,127.0.0.0/8,172.28.1.0/24,203.115.216.0/24,58.247.112.0/24

myorigin = $mydomain

newaliases_path = /usr/bin/newaliases.postfix

queue_directory = /var/spool/postfix

readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES

relay_domains = $mydestination

sample_directory = /usr/share/doc/postfix-2.6.6/samples

sendmail_path = /usr/sbin/sendmail.postfix

setgid_group = postdrop

smtpd_banner = $myhostname ESMTP $mail_name ($mail_version)

smtpd_client_restrictions = permit_sasl_authenticated

smtpd_sasl_auth_enable = yes

smtpd_sasl_local_domain = $myhostname

smtpd_sasl_path = smtpd

smtpd_sasl_security_options = noanonymous

unknown_local_recipient_reject_code = 550

 

本地通过Telnet能正常发信

先获得SMTP认证的用户名和密码的base64。得到一个字串。

[root@calpsv04 etc]# printf '\0%s\0%s' 'info' 'password' | openssl base64

AGluZm8AYWxwaGExMjM=

 

然后telnet邮件服务器，红色字体为手动输入的命令。

[root@calpsv04 log]# telnet mail.apmro.com.sg 25

Trying 203.115.216.134...

Connected to mail.apmro.com.sg.

Escape character is '^]'.

220 mail.apmro.com.sg ESMTP Postfix (2.6.6)

EHLO mail.apmro.com.sg

250-mail.apmro.com.sg

250-PIPELINING

250-SIZE 15728640

250-VRFY

250-ETRN

250-AUTH PLAIN LOGIN

250-AUTH=PLAIN LOGIN

250-ENHANCEDSTATUSCODES

250-8BITMIME

250 DSN

AUTH PLAIN AGluZm8AYWxwaGExMjM=

235 2.7.0 Authentication successful

MAIL FROM:<info@apmro.com.sg>

250 2.1.0 Ok

RCPT TO:radzhang@gainwinsoft.com

250 2.1.5 Ok

DATA

354 End data with <CR><LF>.<CR><LF>

FROM:info@apmro.com.sg

TO:radzhang@gainwinsoft.com

Subject:test message

test test 0616

.

250 2.0.0 Ok: queued as 20C7241141

quit

221 2.0.0 Bye

Connection closed by foreign host.

这样邮箱正常收到了邮件。

但是在outlook里设置smtp后，验证通过了。但是发信就直接退回来了。

服务器错误: '554 5.7.1 <zhang@hotmail.com>: Relay access denied'。

尝试着把我外网的IP  网段58.247.112.0/24加入到main.cf里的mynetworks参数内，结果就能正常发信了。

难道所有要用smtp发信的邮箱服务器都得把相应的外网网段都加上吗？