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Error on postfix: Temporary lookup failure

ng flag

I have an error with my postfix installation. Here is the error:

NOQUEUE: reject: RCPT from sender11-of-o52.zoho.eu[31.186.226.238]: 451 4.3.0 <[email protected]>: Temporary lookup failure; from=<[email protected]> to=<[email protected]>

Here is my main.cf:

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

smtpd_banner = $myhostname ESMTP
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
readme_directory = no

# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
# fresh installs.
compatibility_level = 2

# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.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.

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = mail.paradise-mc.tk

mydomain = paradise-mc.tk

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases

#myorigin = /etc/mailname
myorigin = $mydomain

mydestination = $myhostname, $mydomain, localhost.$mydomain, localhost
relayhost =
mynetworks = 127.0.0.0/8, 161.97.156.225/24
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
#inet_protocols = all
inet_protocols = ipv4

home_mailbox = Maildir/

# SMTP-Auth settings
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/recipient_access, permit_mynetworks, permit_auth_destination, reject_unauth_destination

How do I get this working?

in flag
I dont see a question - but yes, temporary name resolution errors happen...
djdomi avatar
za flag
Questions seeking installation, configuration or diagnostic help must include the desired end state, the specific problem or error, sufficient information about the configuration and environment to reproduce it, and attempted solutions. Questions without a clear problem statement are not useful to other readers and are unlikely to get good answers.
in flag
It's not a postfix issue, it's a DNS issue. Check your DNS configuration.
ng flag
How do I change my DNS configuration?
djdomi avatar
za flag
Dear Natsuki, this site is for Professional purposes only. End User may ask on superuser.com
ng flag
Yes, I’m setting up this email server for my organization.
mangohost

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