[SOLVED] 5.1.1 Recipient address rejected

[stefan]

Hi everybody!

If I try to send a mail to an external account which definitely exists, I get the error mentioned in the title. The strange thing is, that this only happens, if I try to send this mail from my zimbra account. If I send it from a gmx account for example, it works pretty well.

What could be the reason for that? I didn't change anything of the configuration on zimbra, but since yesterday clients start complaining about it.

Some weeks ago I followed the "Improving Anti-spam system" thread of the wiki and made the following restrictions:

zimbra@mail-new:/root> zmprov gacf | grep zimbraMtaRestriction
zimbraMtaRestriction: reject_invalid_hostname
zimbraMtaRestriction: reject_non_fqdn_hostname
zimbraMtaRestriction: reject_non_fqdn_sender

Further, I enabled smtpd_reject_unlisted_recipients in zmmta.cf, but this is just for incoming mails, right?

Maybe you need to know my main.cf as well:

sender_canonical_maps = ldap:/opt/zimbra/conf/ldap-scm.cf
virtual_alias_domains = ldap://opt/zimbra/conf/ldap-vad.cf
recipient_delimiter =
smtpd_tls_cert_file = /opt/zimbra/conf/smtpd.crt
smtpd_tls_auth_only = no
myhostname = mail-new.domain.com
virtual_mailbox_domains = ldap:/opt/zimbra/conf/ldap-vmd.cf
mydestination = localhost
mailbox_size_limit = 0
setgid_group = postdrop
smtpd_client_restrictions = reject_unauth_pipelining
virtual_alias_maps = ldap:/opt/zimbra/conf/ldap-vam.cf
transport_maps = ldap:/opt/zimbra/conf/ldap-transport.cf
sendmail_path = /opt/zimbra/postfix-2.4.3.4z/sbin/sendmail
message_size_limit = 10240000
broken_sasl_auth_clients = yes
alias_maps = hash:/etc/aliases
manpage_directory = /opt/zimbra/postfix-2.4.3.4z/man
smtpd_helo_required = yes
in_flow_delay = 1s
daemon_directory = /opt/zimbra/postfix-2.4.3.4z/libexec
virtual_transport = error
mynetworks = 127.0.0.0/8 196.7.100.0/24
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, reject_invalid_hostname, reject_non_fqdn_hostname, reject_non_fqdn_se
nder, permit
smtpd_tls_loglevel = 3
relayhost =
disable_dns_lookups = no
content_filter = smtp-amavis:[127.0.0.1]:10024
virtual_mailbox_maps = ldap:/opt/zimbra/conf/ldap-vmm.cf
mail_owner = postfix
version = 2.4.3.4z
mailq_path = /opt/zimbra/postfix-2.4.3.4z/sbin/mailq
header_checks = pcre:/opt/zimbra/conf/postfix_header_checks
smtpd_use_tls = yes
queue_directory = /opt/zimbra/data/postfix/spool
newaliases_path = /opt/zimbra/postfix-2.4.3.4z/sbin/newaliases
smtpd_reject_unlisted_recipient = yes
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_tls_key_file = /opt/zimbra/conf/smtpd.key
command_directory = /opt/zimbra/postfix-2.4.3.4z/sbin
smtpd_sasl_auth_enable = yes

If you have any idea why this error occurs, please let me know! Thank you!

Cheers,
Stefan

[uxbod]

Please post a extract from /var/log/zimbra.log for when this happens. Need to see the exact details of why it is being rejected.

[stefan]

Thanks for your reply!

In /var/log/zimbra.log nothing really special happens. This is all I get when I try to send that mail:

May 30 16:44:20 mail-new saslauthd[11993]:
auth_zimbra: stefan.asanger@ourcompany.co.za auth OK

I found more details in /var/log/mail.info:

May 30 16:08:50 mail-new postfix/smtpd[20897]:
NOQUEUE: reject: RCPT from unknown[196.7.*.*]: 550 5.1.1
<dietmar@domain.co.za>: Recipient address rejected: domain.co.za;
from=<stefan.asanger@ourcompany.co.za> to=<dietmar@domain.co.za>
proto=ESMTP helo=<[196.7.*.*]>

Does that help you?

[DGSO]

I am experiencing the same errors. Why is this thread marked "solved"? I see no solution.

[veronica]

disable smtpd_reject_unlisted_recipients. The rejection is because of this.