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configuring and installing sendmail linux

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					Sendmail Configuration




      M4 is a macro language that can
      help to configure the sendmail.cf
           file, using sendmail.mc
Sendmail Configuration




           Open the Virtusertable file,
            for mapping user virtual
               domain addresses.
Sendmail Configuration



       The virutusertable configuration
       helps to define the domain name
          along with fully qualified
                 domain name.
Sendmail Configuration




       Open a local-host-file.
Sendmail Configuration




     The local-host-file is for multiple
     hosts using the same mail server.
     Enter the domain name as given
                  above.
Sendmail Configuration




       Service for the
        sendmail is
          restarted
Sendmail Configuration



                Inorder to determine if
                send mail is identifying
                 your station hostname
               correctly, use sendmail -
                           d0.
Sendmail Configuration




       The ipop3 protocol enables
         to receive the messages
       from mail server. Open the
                pop3 file .
Sendmail Configuration




          Disable = yes, the pop3
        service is disabled then the
         mails cannot be received.
Sendmail Configuration




       To Enable the ipop3 Disable is
              changed to no.
Sendmail Configuration




          The xinetd
          service is
          restarted.
Sendmail Configuration




       The root user send a mail to the
        user joe using mail command.
Sendmail Configuration




         The mail sent by the root
        is received by the user joe
              as shown above.
        Sendmail Configuration
• Evolution:
     • Evolution is the primary mail client for redhat.

     • It is the powerful tool with supports numerous
      protocol (smtp, pop and imap)

     • It includes calendar, address book , multiple mail
      accounts and encryption.

     • It is supported by both gnome and kde
Sendmail Configuration




        Running evolution in
          the background.
Sendmail Configuration




                   The evolution
                welcome wizard get
                  opened and click
                forward to continue.
Sendmail Configuration



             Enter the user name and email
              address and click forward to
                       continue .
Sendmail Configuration



           The pop option is chosen to
           receive mails from the mail
            server and click forward.
Sendmail Configuration


               Specify the server
               hostname and the
                  username .
Sendmail Configuration



           The time given as 10 will update
            the mail in every 10 seconds .
Sendmail Configuration



            Select the SMTP protocol to transfer
               the mail to the mail server and
                  specify a server address.
Sendmail Configuration




                A name is given to
                represent the mail
                     account.
Sendmail Configuration



                Location is specified in the
             timezone setting for the sendmail
                      configuration .
Sendmail Configuration
                Evolution process is done by
                  entering the information
                          needed.
Sendmail Configuration




          Tom the user sends a mail
          by selecting New button .
Sendmail Configuration




          The user tom sends the mail
           to the user root as shown
                    above .
Sendmail Configuration


                 The root user view the
                 mail received from the
                  user tom using the
                    command mail.
Sendmail Configuration




          The user root sends the mail
           to the user tom as shown
                    above. .
Sendmail Configuration




        The tom views the mail received
       from the use root as shown above
                       .
Sendmail Configuration




       dig command shows ip address
       of the specified fully-qualified
               domain name .
Sendmail Configuration




       The access file is opened to set
       the restriction for accessing the
               sendmail server .
Sendmail Configuration




        Except the example.com all
       others are restricted to access .
          Certificates for IMAP
• Internet mail Access Protocol

  – It allows a remote server to hold mail for user who
    can then login into access their mail.

  – Unlike the POP servers, IMAP servers retain user
    mail messages.

  – User can even save their mails on the IMAP mail
    server.

  – IMAP also supports the use of shared folder to
    which several user can access mail on given topic.
Certificates for imap



             To create the imap certificate
           first remove the file imapd.pem.
Certificates for imap



              The imap certificate can
            created using the command
                 make imapd.pem.
Certificates for imap

            While creating imap certificate it
           will prompts for following, just enter
                 the corresponding details.
Certificates for imap




       The imaps protocol enables
      to receive and save the mails
       from mail server. Open the
               imaps3 file.
Certificates for imap




        Setting disable=no will
        enables imaps services.
Certificates for imap




         The xinetd
         service is
         restarted.
Certificates for imap




           The issued certificate
      information cab be viewed using
            the command mutt.
Certificates for imap



          Here you can see the
                 certific
           ate information's.

				
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Description: configuring and installing sendmail linux for beginer