Hi everyone,
When sending emails you get a bounce back email with following error :
QuoteGoogle tried to deliver your message, but it was rejected by the server for the recipient domain yourdomain.com by yourdomain.com. [xxx.xxx.xx.xx].
The error that the other server returned was:
550 No Such User Here
Log into the server via SSH and go to user directory. Check if the email account is exist.
Quote# cd /home/username/
# ll mail
If mail account exist then check for the group ownership of etc/ directory by list command.
Quote/home/username/]#ll
drwxr-x---. 4 username mail 4096 Dec 2 2009 etc/
#ll etc/
drwx--x--x. 3 username username 4096 Dec 2 2009 .boxtrapper/
-rw-r--r--. 1 username username 0 Feb 18 2006 .imapv4
drwxr-x---. 6 username username 4096 Dec 2 08:46 yourdomain.com/
Quote#ll etc/yourdomain.com/
drwx------. 3 username mail 4096 Dec 2 2009 info/
drwx--x--x. 3 username username 4096 Dec 2 2009 lina/
drwxr-xr-x. 2 username username 4096 Apr 9 2012 lina.m/
-rw-r-----. 1 username mail 395 Mar 12 2013 passwd
-rw-r----- 1 username username 1460 Feb 1 2013 passwd,v
drwxr-x---. 2 username username 4096 Feb 1 2013 \@pwcache/
-rw-r-----. 1 username username 0 Oct 25 2012 quota
-rw-r----- 1 username username 710 Oct 25 2012 quota,v
-rw-r-----. 1 username mail 260 Feb 1 2013 shadow
-rw-r----- 1 username username 1459 Feb 1 2013 shadow,
If you check carefully 1st list, command shows etc has the mail group ownership then the files under etc/ directory has both ownership has correct. But when you go to check the ownership for that particular domain i.e etc/yourdomain.com/ you can see here some file has a mail group ownership but some has not. This is the problem, you will have to correct the group ownership of all files to mail.
Quote#chgrp mail etc -R
After run above command you can check the ownership with following command.
Quote#ll etc/domain.com/
drwx------. 3 username mail 4096 Dec 2 2009 info/
drwx--x--x. 3 username mail 4096 Dec 2 2009 lina/
drwxr-xr-x. 2 username mail 4096 Apr 9 2012 lina.m/
-rw-r-----. 1 username mail 395 Mar 12 2013 passwd
-rw-r----- 1 username mail 1460 Feb 1 2013 passwd,v
drwxr-x---. 2 username mail 4096 Feb 1 2013 \@pwcache/
-rw-r-----. 1 username mail 0 Oct 25 2012 quota
-rw-r----- 1 username mail 710 Oct 25 2012 quota,v
-rw-r-----. 1 username mail 260 Feb 1 2013 shadow
-rw-r----- 1 username mail 1459 Feb 1 2013 shadow,v
Now you can send email enjoy !!.