Sendmail configuration in linux

Article Title: configure sendmail in linux. Linux is a technology channel of the IT lab in China. Some basic categories, such as desktop applications, Linux system management, kernel research, embedded systems, and open-source systems, are easy to configure sendmail mail servers in linux:
1cd/etc/xinetd. d
2ls check whether ipop3 and imap protocols are available
3. Edit vi/etc/xinetd. d/ipop3 and change disable = yes to disable = no.
4. Edit vi/etc/xined. d/imap and change disable = yes to diable = no.
5. Test pop3 and imap telnet localhost 110 (pop3 Post Office Protocol port) telnet localhost 143 (imap port)
When exiting, use ctl +] and press enter to enter quit (remember to restart the xinetd service after testing)
6. Edit vi/etc/mail/sendmail. mc.
7 put dnl TRUST_AUTH_MECH (.........) and dnl define ('confauth _ MECHANISMS ',.........) the previous dnl went.
8. Add two DAEMON_OPTIONS ('port = 25, name = MTA ') dnl and DAEMON_OPTIONS ('port = 587, name = MSA, m = Ea') dnl
9 Add dnl before DAEMON_OPTIONS ('port = smtp, Addr = 127.0.0.1, name = smTA ') dnl and DAEMON_OPTIONS ('Accept _ Unres, Olvale_domains') dnl
10. test MTA telnet localhost 25. Press ENTER ehlo test and press Enter. AUTH = .. 250 indicates that the system successfully exits.
11. Rewrite input m4/etc/mail/sendmail. mc>/etc/mail/sendmail. cf
12 restart sendmail service sendmail restart
13. Edit vi/etc/mail/access to add the IP addresses or domain names of users allowed to be forwarded, for example, to allow computers with 192.168.10.10 to pass through
Edit vi/etc/mail/access and add 192.168.10.10 RELAY or OK to it (allow forwarding and passing)
14 edit vi/etc/mail/local-host-names and add the domain name used by the email server
15 add an in mx 5 (the parameter is set as a priority) to forward resolution when DNS is performed)
16 Re-configure the sendmail service