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Heading
Sendmail Configuration
Access configuration
Dovecot configuration
Sendmail Configuration Files
# /etc/mail/
# vi /etc/mail/sendmail.cf
Configure Sendmail in sendmail.cf File
Step 1
Cwtraining.com
Step 2
#my Official Domain
Dj$w.training.com
Step 3
#SMTP initial login message
oSmtpGreetingMessage=$
Step 4
# SMTP daemon options
O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA
change to
O DaemonPortOptions=Port=smtp,Addr=192.168.100.134, Name=MTA
Step 5
Start the Servcie
# /etc/inint.d/sendmail start
Configure in local-host-names
Now that we have sendmail accepting external connections, we need to assign the domains that can be accepted. This can be accomplished with the /etc/mail/local-host-names file. Simply put the domain name, blank.com, in the file.
Configure in access file
# by default we allow relaying from localhost...
localhost.localdomain RELAY
localhost RELAY
127.0.0.1 RELAY
Training.com RELAY
[root]# makemap hash /etc/mail/access.db< /etc/mail/access
The make access.db command will include your new setting in the hash database used by sendmail to determine who can relay e-mail off your server. This will allow connections from inside the smartentry.in domain to relay e-mail from your new mail server.
Configuring DOVECOT
1. protocols = imapimaps pop3 pop3s
2. auth_mechanisms = plain
3. mail_location
Testing SMTP Mail Service
Testing POP3 Mail Service
Testing IMAP Mail Service
Test Mail server through telnet, port 25 SMTP
# telnet<IP Address> 25
# helo<Domain Name>
# mail from:<
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
>
# rcpt to:<
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
>
# data<Type body of the mail>.
# . To terminate this line
# quit
Example
# helotraining.com
# mail from:<
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
>
# rcpt to:<
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
>
# data<This is test mail>.
# . To terminate this line
# quit
Test Mail server through telnet, port 110 SMTP
# telnet<IP Address> 110
# USER <User Name>
# PASS <Password>
# LIST
Example
# telnet<IP Address> 110
+OK dovecot ready
# USER smart
+OK
# PASS mail@123
+OK Logged in
# LIST
+OK 1 messages
Test Mail server through telnet, port 143 SMTP
# telnet<IP Address> 143
# LOGIN <User Name><Password>
# LIST “” *
# SELECT <Mail Box>
Example
# telnet<IP Address> 143
# LOGIN <smart><mail@123>
# LIST “” *
# SELECT <smart>
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