8/6/2019 Sendmail Server

1/4

We will configure sendmail for accepting mails in maildir formatfor the domain fnettest.com.

Pre-request:

1.Fedora Core 3 must be installed.

2. User must have knowledge of using vi editor(If not please refer to vi manual in thisKB).

Document Print1.Login as root.

2.Go to /etc/mail directoryType "cd /etc/mail"

3.Edit sendmail.mc file

Type "vi sendmail.mc"

4.Search for the word " Addr=127.0.0.1 ".

5.Change the line"DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl " to"dnl # DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl "

& Change this line also, remove the ''dnl'' front of this line

''TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGINPLAIN')dnldefine(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5CRAM-MD5 LOGIN PLAIN') ''

8/6/2019 Sendmail Server

2/4

6.Change the line"dnl MASQUERADE_DOMAIN(localhost)dnl " to"MASQUERADE_DOMAIN(fnettest.com)dn l"

Save the file

7.Convert the sendmail.mc file to sendmail.cf file using m4\Type "m4 sendmail.mc > sendmail.cf"

8.Edit local-host-namesType "vi local-host-names"

Type fnettest.com save the file.

9.Go to the directory "/etc"Type "cd /etc"

10.Create and edit the file procmailrcType "vi procmailrc"

Type the following text in the file PATH=$HOME/bin:/usr/bin:/usr/ucb:/bin:/usr/local/bin:.

MAILDIR=$HOME/mail

DEFAULT=$MAILDIR/mboxLOCKFILE=$HOME/.lockmail

16. Save the file. 17.Go to the directory /etc/skel

Type "cd /etc/skel"

18.Create a directory called "mail"Type "mkdir mail".

19.Go to the directory /etc/skel/mailType "cd /etc/skel/mail"

8/6/2019 Sendmail Server

3/4

20.Create an empty file named mbox.Type "touch mbox"

21.Go to the directory /etc/skelType "cd /etc/skel"

22.Create a link to the file mail/mboxType "ln -s mail/mbox "

23.Start sendmail & saslauthdType "/etc/init.d/sendmail start" .

Type ''/etc/init.d/saslauthd

24.Make sendmail to start by default whenever the system bootsType "chkconfig sendmail on".

Configuration of pop3 for sending mail.(DOVECOTCONFIGURATION )

1. Login as root. 2.Go to /etc directory.

Type "cd /etc"Edit the file dovecot.conf

Type "vi dovecot.conf" 4.Change the line

" protocols = im ap" to " protocols = pop3 pop3s imap imaps ". 5.Change the line

"default_mail_env = " to " default_mail_env = mbox:~/mail/:INBOX=/%h/mail/mbox ".

6. Save file and exit

8/6/2019 Sendmail Server

4/4

7.Start dovecot service

Type "/etc/init.d/dovecot start" 8.Make the service dovecot to start by default whenever the server boots

Type "chkconfig dovecot9.Install The Squirrel mail rpm

type ''rpm -ivh squirrelmail..''

10.restart the http servicetype ''service httpd restart''