postfix mail forwarding working for some email addresses but not others

Question

I am having trouble getting domain '[email protected]' to work. When I send mail to it (from outlook and yahoo), I get error 'Recipient address rejected: User unknown in local recipient table' (I have googled this and came across a few stackoverflow posts but nothing seems helpful... )

ALL of the below mails work, apart from '[email protected]' ... ?

/etc/postfix/virtual:

[email protected] gvanto
[email protected] gvanto
[email protected] gvanto
[email protected] gvanto

I came across this post which suggests that setting: local_recipient_maps = (empty) should stop this error happening but its not working for me.

I have checked and there are NO USERS OR ALIASES for 'webmaster' or 'support' so why would these work but not 'test' ?

I've tried adding test: gvanto and test: root to /etc/aliases too ... restarted postfix each time, no luck ...

Any help much appreciated, thank you

Full config (/etc/postfix/main.cf):

# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/mail_example_com.pem
smtpd_tls_CAfile=/etc/ssl/certs/mail_example_com.ca-bundle
smtpd_tls_key_file=/etc/ssl/private/mail_example_com.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

myhostname = mail.example.com
#alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
virtual_alias_maps = hash:/etc/postfix/virtual
alias_database = hash:/etc/aliases
#local_recipient_maps = proxy:unix:passwd.byname $alias_maps
local_recipient_maps =

mydestination = localdomain, localhost, localhost.localdomain, localhost, mail.example.com, example.com
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
#mailbox_command = procmail -a "$EXTENSION"
mailbox_command =
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
myorigin = /etc/mailname
inet_protocols = all

# all below krizna mod
home_mailbox = Maildir/
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtp_tls_security_level = may
smtpd_tls_security_level = may
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes

/etc/aliases:

# See man 5 aliases for format
mailer-daemon: postmaster
postmaster: root
nobody: root
hostmaster: root
usenet: root
news: root
webmaster: root
www: root
ftp: root
abuse: root

test: root

root: gvanto

Answer 1

Because you have

virtual_alias_maps = hash:/etc/postfix/virtual
alias_database = hash:/etc/aliases

both of these files are handled as hash: Berkeley DB.

Use these commands to update databases:

sudo postmap /etc/postfix/virtual
sudo postalias /etc/aliases