I have a CENTOS server running Postfix, DoveCot, Webmin and SquirrelMail.

All works well with ports and i can send.

I just cannot receive.

When trying to send email to my domain on this machine i receive this message:

(Server IP) does not like recipient.
Remote host said: 554 5.7.1 <user@domainname.com>: Relay access denied Giving up on (Server IP).

The results from postconf -n

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
home_mailbox = Maildir/
html_directory = no
inet_protocols = all
mailbox_command =
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain, $mydomain
myorigin = alliedhealtheacademy.com
newaliases_path = /usr/bin/newaliases.postfix
readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES
sample_directory = /usr/share/doc/postfix-2.6.6/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
unknown_local_recipient_reject_code = 550

Can anyone help me out? I'm sure i missed something, it seems to be just a relay issue.

Postfix is rejecting the mail as an attempted relay probably because domainname.com is not in mydestination. I can't tell what's in mydestination = $myhostname, localhost.$mydomain, $mydomain

so should i add my 'domainname'.com to the main.cf file?

That worked!

Thank you very much Mpapet.

I knew it was one small thing i was missing.

Now i have another issue with Dovecot which i think is another simple fix...

When trying to log in with pop3 (using Telnet) i receive this message:

ERROR: Login failed -ERR Plaintext authentication disallowed on non-secure (SSL/TLS) connections.
POP3 test failed.

Would you happen to know how to remedy this?

Sorry i fixed this issue.

I went to the 10-auth.conf file in the conf.d/ dovecot configuration folder and changed disable_plaintext_auth = no to yes.

I restarted Dovecot after that and all was well!

Nice work, you read your messages and solved.

now please if you solved it, use the thread options to mark it Solved.