[SOLVED] Unable to send mail

T3RM1NVT0R · 03-23-2011, 04:27 PM

Hello everyone,

OS Environment: RHEL5

I am trying to send an email to a user in my Linux system but I keep on getting bounce back messages. I am trying the following steps:

1. I login as root.
2. #mail test@localhost.localdomain
subject: test email.
Hi,
This is a test email.
3. I hit ctrl+d where it ask me to add anyone in CC. Then I hit enter again and I get the bounce back immediately.

Queries:

1. Is it necessary to have email address in [email]testuser@testdomain.com format
2. Is it not possible to send emails to internal users.
3. Please advice where I am going wrong.

Please note I am not using sendmail or postfix. I am simply typing mail at the server system console to send an email.

szboardstretcher · 03-23-2011, 04:32 PM

Code:

service sendmail start

Code:

> su - root
> mail root
Subject: blah
blah
.
CC:


> mail

repo · 03-23-2011, 04:34 PM

Does the user test exist?

Quote:

Then I hit enter again and I get the bounce back immediately.

Error message?

Quote:

1. Is it necessary to have email address in [email]testuser@testdomain.com format

No, testuser should do

Kind regards

T3RM1NVT0R · 03-24-2011, 05:29 PM

Hi Repo,

I get the following response:

<root@localhost.localdomain>... Real domain name required
for sender address

Hi szboardstretcher

I have checked the sendmail status and it is running still mail bounce back.

sp88 · 03-24-2011, 06:24 PM

hello sir,you could actually use a file named "local-host-names" in "/etc/mail" directory...
enter as many as hostnames you would like to recieve the mail with that host name..

T3RM1NVT0R · 03-26-2011, 01:38 PM

Hello sp88,

Both etc/sysconfig/network as well as /etc/hosts are updated with the hostname.

Regards,

T3RM1NVT0R

ComputerErik · 03-26-2011, 02:13 PM

Have you tried with just the username as suggested? For local users nothing is needed in the domain, and adding the @localhost.localdomain is probably the issue since that will not resolve, or have a valid MX record.

T3RM1NVT0R · 03-26-2011, 06:51 PM

Hello everyone,

I finally got this straight. Now the emails are getting deliver to the test account.

The only difference that I noticed is the error message which I was getting is when I created the user by editing /etc/passwd file. When I created the user using User and Groups management console it worked in one shot.

The only reason that I can think of is that there might be something missing in /home/test/skel directory when I copied it to the user directory after creating it using /etc/passwd.

Please let me know if I am guessing it correctly or there can be any other reason. Because I have tried the same method of sending email in both the cases.