Sending email to my local server

[Timothy Murphy]

I'm trying to send email from my Fedora-20/KDE laptop "rose"
to my CentOS-6.5 local home server "grover"
(in order to run a SpamAssassin test),
but I am finding this surprisingly difficult.

I've tried with KMail and mail,
sending email to "tim at grover", "tim at grover.localdomain",
and various other combinations, but all fail with "recipient rejected".
And telnet gives
  [tim at rose ~]$ telnet 192.168.2.5 25
  Trying 192.168.2.5...
  telnet: connect to address 192.168.2.5: Connection refused

Is there a setting I could change, or is the exercise hopeless?


-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin 2, Ireland