Configure the exim sending server in CentOS 6 and 7

Configure the exim sending server in CentOS 6 and 7
1. Configure the epel source (the exim package is located in the EPEL software source)

CentOS7

1. #cat>/etc/yum.repos.d/epel.repo<<EOF[epel]name=ExtraPackagesforEnterpriseLinux7-\$basearch#baseurl=http://download.fedoraproject.org/pub/epel/7/\$basearchmirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=\$basearchfailovermethod=priorityenabled=1gpgcheck=0EOF

CentOS6

1. #cat>/etc/yum.repos.d/epel.repo<<EOF[epel]name=ExtraPackagesforEnterpriseLinux6-\$basearch#baseurl=http://download.fedoraproject.org/pub/epel/6/\$basearchmirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=\$basearchfailovermethod=priorityenabled=1gpgcheck=0EOF

2. Disable postfix

1. # Servicepostfixstop

2. # Chkconfigpostfixoff

3. Install exim

1. # Yum-yinstallexim

4. Set exim as the default MTA

1. # Alternatives -- setmta/usr/sbin/sendmail. exim

5. Modify the exim configuration file

1. # Vi/etc/exim. conf # several parametersprimary_hostname=mail.flying.com# When viewing the source email, the message "Received ed: frommail.flying.com" is displayed. If you do not specify the Host Name of the operating systemdomainlistlocal_domains=@localhost:localhost.localdomain：mail.flying.comdomainlistrelay_to_domains=flying.com# Domain name that allows email sending by host Modificationhostlistrelay_from_hosts=127.0.0.1:192_32G:10.168.0.0/16:
2. <br>

3. # Allow the client hosts to send emails. If you use this server to send emails locally, you need to add a local egress IP address (public network address)

6. Test

1. # Yum-yinstallmailx

2. # Date | mail-rno-reply@flying.com-s 'eximtest' uttflying @ foxmail.com

3. # Tail-f/var/log/exim/main. log # exim log File

Ps:

If-r is not specified and your host name is not xxx.com, the following error may be reported:

SMTP error from remote mail server after mail from:

The error is 550 MI: the IMF sender's email address is invalid.

Use files to send Emails:

date|mail-rflying@yflying.com-s'SN_IPinfoTEXT'uttflying@163.comwanglei@flying.com</root/cobbler/sn.logThe syntax of the mail command is as follows:Usage:mail[-iInv][-ssubject][-ccc-addr][-bbcc-addr]to-addr...[--sendmail-options...]mail[-iInNv]-f[name]mail[-iInNv][-uuser]

Test successful