Postfix - Recipient address rejected: User unknown in local recipient table

Question

I am learning (trying) to build my own mail server in Centos 7 VM. I have come to a problem when my incoming mails are getting rejected. Using POSTFIX I am trying to send emails from gmail to my mail but it is stucked by this error. Below I will provide as much information as I can. Btw I dont have any DNS record so I am using IP only. User is John.

[root@mail ~]# cat /etc/aliases
john: john

Output from (postconf -d; postconf -d; postconf -n; ) | sort | uniq -u

mydomain = marhyno.info
myhostname = mail
mynetworks = all
mydestination = localhost.$mydomain, localhost, mail.marhyno.info, <myipo>
smtpd_recipient_restrictions =
    permit_sasl_authenticated
    permit_mynetworks
    reject_unauth_destination
resolve_numeric_domain = yes
relay_recipient_maps =
alias_maps = hash:/etc/aliases                                                                            
allow_mail_to_commands = alias,forward,include
allow_mail_to_files = alias,forward,include
biff = no
html_directory = /usr/share/doc/packages/postfix/html
local_recipient_maps = unix:passwd.byname $alias_maps

Output from tail -f /var/log/maillog

Feb 10 01:26:55 mail postfix/smtpd[7531]: connect from mail-yb0-f173.google.com[209.85.213.173]
Feb 10 01:26:56 mail postfix/smtpd[7531]: NOQUEUE: reject: RCPT from mail-yb0-f173.google.com[209.85.213.173]: 550 5.1.1 <john@<myip>>: Recipient address rejected: User unknown in local recipient table; from=<[email protected]> to=<john@<myip>> proto=ESMTP helo=<mail-yb0-f173.google.com>
Feb 10 01:26:56 mail postfix/smtpd[7531]: disconnect from mail-yb0-f173.google.com[209.85.213.173]

Any help will be appreciated :) Thank you.

Answer 1

Solution has been found:

/etc/postfix/main.cf
    local_recipient_maps =

Local recipient maps is enabled by DEFAULT = setting that to empty enables postfix to finally accept message and store it in users file. Also to enable download email to users Outlook - set Chown permissions to the name of the user - e.g. chown john:john /var/spool/mail/john

Also to completely provide solution - change mynetworks = all ... to your home / local subnet ... e.g. my is 192.168.0.0/24