Sendmail Configuration

8/14/2019 Sendmail Configuration

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Open the Virtusertable file,for mapping user virtual

domain addresses.

Sendmail Configuration


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Open a local-host-file.



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The local-host-file is formultiple hosts using the

same mail server. Enter thedomain name as given

above.



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Service for the

sendmail is

restarted



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Inorder to determine if

send mail is identifying

your station hostnamecorrectly, use sendmail

-d0.



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The ipop3 protocol enables

to receive the messages

from mail server. Open the

pop3 file .



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Disable = yes, the pop3

service is disabled then themails cannot be received.



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To Enable the ipop3 Disable is

changed to no.



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The xinetdservice is

restarted.



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The root user send a mail to the

user joe using mail command.



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The mail sent by the rootis received by the user

joe as shown above.



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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



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Running evolution inthe background.



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The evolution

welcome wizard get

opened and click

forward to continue.



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Enter the user name and email

address and click forward tocontinue .



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The pop option is chosen to

receive mails from the mail

server and click forward.



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Specify the server

hostname and the

username .



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The time given as 10 will

update the mail in every 10

seconds .



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Select the SMTP protocol to

transfer the mail to the mail serverand specify a server address.



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A name is given to

represent the mail

account.



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Location is specified in the

timezone setting for the

sendmail configuration .



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Evolution process is done by

entering the information

needed.



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Tom the user sends a

mail by selecting New

button .



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The user tom sends the

mail to the user root as

shown above .



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The root user view the

mail received from the

user tom using the

command mail.



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The user root sends the

mail to the user tom as

shown above. .


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The tom views the mailreceived from the use root as

shown above .



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dig command shows ip address

of the specified fully-qualified

domain name .



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The access file is opened to set

the restriction for accessing the

sendmail server .


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Internet mail Access Protocol

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

Unlike the POP servers, IMAP servers retainuser mail messages.

User can even save their mails on the IMAPmail server.

IMAP also supports the use of shared folder towhich several user can access mail on giventopic.

Certificates for IMAP


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Certificates for imap

To create the imap certificate

first remove the fileimapd.pem.


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The imap certificate can

created using the command

make imapd.pem.



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While creating imap certificate it

will prompts for following, just

enter the corresponding details.



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The imaps protocol enables

to receive and save the mails

from mail server. Open the

imaps3 file.



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Setting disable=no will

enables imaps services.



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The xinetdservice is

restarted.


ifi f i


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The issued certificate

information cab be viewed

using the command mutt.


C ifi f i


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Here you can see the

certificate information's.


Sendmail Configuration

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