Email error - unknown user

Hi,
I'm a newbee so i may post stupid things.

I have few sites hosted on my Centos. IspConfig configured them and all seems ok.

However, I cannot send email from an Outlook client. Is in the same network, i can connect to my mail server but I cannot send or receive emails.

i get this on the root account

Code:

(reason: 550 5.1.1 User unknown)

A friend tried to explain to me how to setup the users so that they could send/receive emails but I didn't exactly understand. He also created another type of user with different privileges.

Now, what shall I show you from my wonderful Linux configuration???

I have no GUI so my Linux for Dummies book is not helping me much.(and I have to learn as you did)

Thanx in advance for help.

 

thanx till,


my friend created a seperate user, no link to my configuration.

I have users created in ispconfig but their emails don't work.

is somwhere a problem with the sendmail config, i presume.

 

I have a user web28_nick

In ispconfig it tels me that the email address must be nick@

but i tried to send email from outside and I get 'user unknown'

I also try to send email to web28_nick@

I get this error:

Code:

----- The following addresses had permanent fatal errors ----- "|/usr/bin/procmail -f-"
    (reason: Service unavailable)
    (expanded from: <[email protected]>)

 

I have news:

I can receive email. I stopped sendmail and started postfix.

(i need to learn how to make them start at boot.)

When i try to send emails from outside to my address I get this error:

[email protected]
SMTP error from remote mail server after RCPT TO:<[email protected]>:
host www.xxxx.com [xx.xx.xx.xx]: 554 <[email protected]>:
Relay access denied

any ideas?

 

Is [email protected] listed in /etc/postfix/virtusertable? Does xxxxx.com appear in /etc/postfix/local-host-names?

 

Yes, in both.

 

Does the MX record for xxxxx.com point to the correct server? You can check that with

Code:

dig mx xxxxx.com