In linux, configure sendmail enterprise Post Office lab guide-general Linux technology-Linux technology and application information. For more information, see the following. How to configure sendmail enterprise Post Office experiment in linux
This article summarizes the simplest cases to help new Honglian learn the basic sendmail configuration.
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1. Install Related Services
DNS
Mailserver (sendmail, imap)
2. Start Related Services
Service named restart
Service sendmail restart
Service xinetd restart
Chkconfig ipop3 on
3. Configure DNS and add MX records
Configure DNS
Add an MX record to the forward/reverse interval File
In mx 10 (priority) mail.anniey.com
Mail in a 192.168.1.100
4. Main configuration file
/Etc/mail/sendmail. cf
Search/smtp
Port = smtp, Addr = 192.168.1.100
5. Accept the domain configuration file
Vi/etc/mail/local-host-names
Add
Anniey.com
192.168.1.100
6. Relay forwarding configuration file
/Etc/mail/access. db (inaccessible)
Vi/etc/mail/access
Add
Anniey.com
192.168.1
Exit
Makemap hash access. db <access
6. Add a user
Useradd user01
Passwd user01
Useradd user02
Passwd user02
7. Restart the service
Service sendmail restart
Service xinetd restart
Supplement: email user alias and email domain alias
A) User alias
1. Vi/etc/aliases
Alias Username
A01 user01
A02 user02
Exit
2. Newaliases
B) email domain alias
1. Configure related DNS
2. Add a domain alias
Vi/etc/mail/sendmail. cw
Anniey.com
Johnny.com
Exit
3. Accept the domain configuration file
Vi/etc/mail/local-host-names
Anniey.com
Johnny.com
192.168.1.100
4. Restart the service
Service named restart
Service sendmail restart
Service xinetd restart
Supplement: Enable smtp authentication
1. Install related modules
Rpm? Qa | grep sasl
Linux: RedHat-> RPMS-> sasl *
2. Modify/etc/mail/sendmail. mc (source code of sendmail. cf)
Vi/etc/mail/sendmail. mc
Query: 43 TRUST_AUTH *
: 44
: 85 DAEMON_OPTION *
: 92 DAEMON *
Note: Remove dnl (note)
3. Generate sendmail. cf
M4 sendmail. mc> sendmail. cf
4. delete some relay to avoid opening a backdoor
5. Client
My server requires authentication
