Configuring localhost to send messages fedora 26

Installing the required packages

$sudo dnf install sendmail sendmail-cf
Last metadata expiration check: 0:51:15 ago on Saturday 31 March 2018 01:28:13 PM IST.
Package sendmail-8.15.2-19.fc26.x86_64 is already installed, skipping.
Dependencies resolved.
============================================================================================================================================================================================================================
 Package                                               Arch                                             Version                                                     Repository                                         Size
============================================================================================================================================================================================================================
Installing:
 sendmail-cf                                           noarch                                           8.15.2-19.fc26                                              updates                                           195 k

Transaction Summary
============================================================================================================================================================================================================================
Install  1 Package

Total download size: 195 k
Installed size: 956 k
Is this ok [y/N]: y
Downloading Packages:
sendmail-cf-8.15.2-19.fc26.noarch.rpm                                                                                                                                                       253 kB/s | 195 kB     00:00    
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                                        92 kB/s | 195 kB     00:02     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                                                    1/1 
  Installing       : sendmail-cf-8.15.2-19.fc26.noarch                                                                                                                                                                  1/1 
  Verifying        : sendmail-cf-8.15.2-19.fc26.noarch                                                                                                                                                                  1/1 

Installed:
  sendmail-cf.noarch 8.15.2-19.fc26                                                                                                                                                                                         

Complete!

Editing sendmail.mc file

2.[15:45 cipher@server ~]$ sudo vi /etc/mail/sendmail.mc

$grep LOCAL_DOMAIN /etc/mail/sendmail.mc
LOCAL_DOMAIN(`server.sand.box')dnl

$grep DAEMON_OPTIONS /etc/mail/sendmail.mc
DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl



Update sendmail configuration

sudo make -C /etc/mail

$ sudo make -C /etc/mail
make: Entering directory '/etc/mail'
make: Leaving directory '/etc/mail'

Restart and enable the service

$sudo systemctl enable sendmail
Created symlink /etc/systemd/system/multi-user.target.wants/sendmail.service → /usr/lib/systemd/system/sendmail.service.
Created symlink /etc/systemd/system/multi-user.target.wants/sm-client.service → /usr/lib/systemd/system/sm-client.service.

Sending test mail.

$mail -v pawaan.v@gmail.com
Subject: test
test
.
EOT
pawaan.v@gmail.com... Connecting to [127.0.0.1] via relay...
220 localhost.localdomain ESMTP Sendmail 8.15.2/8.15.2; Sat, 31 Mar 2018 14:27:22 +0530
>>> EHLO localhost.localdomain
250-localhost.localdomain Hello localhost.localdomain [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> MAIL From:<cipher@localhost.localdomain> SIZE=213 AUTH=cipher@localhost.localdomain
250 2.1.0 <cipher@localhost.localdomain>... Sender ok
>>> RCPT To:<pawaan.v@gmail.com>
>>> DATA
250 2.1.5 <pawaan.v@gmail.com>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 w2V8vMPS011733 Message accepted for delivery
pawaan.v@gmail.com... Sent (w2V8vMPS011733 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 localhost.localdomain closing connection