[SOLVED] 550 authentication required (in reply to RCPT TO command)

[SurrealSystems]

I get this message when sending mail to some servers.
Some other servers let mail through.
Others just drop the connection.

Any ideas?

Postfix config

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 = yes
myhostname = mail.XXX.com
virtual_mailbox_domains = ldap:/opt/zimbra/conf/ldap-vmd.cf
mydestination = localhost
mailbox_size_limit = 0
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-2.2.9/sbin/sendmail
message_size_limit = 10240000
broken_sasl_auth_clients = yes
alias_maps = hash:/etc/aliases
manpage_directory = /opt/zimbra/postfix-2.2.9/man
smtpd_helo_required = yes
daemon_directory = /opt/zimbra/postfix-2.2.9/libexec
virtual_transport = error
smtpd_recipient_restrictions = reject_non_fqdn_recipient, permit_sasl_authenticated, permit_mynetworks, reject_unlisted_recipient, reject_non_fqdn_sender, reject_unauth_destination, permit
smtpd_tls_loglevel = 1
relayhost =
disable_dns_lookups = yes
content_filter = smtp-amavis:[127.0.0.1]:10024
virtual_mailbox_maps = ldap:/opt/zimbra/conf/ldap-vmm.cf
version = 2.2.9
mailq_path = /opt/zimbra/postfix-2.2.9/sbin/mailq
header_checks = pcre:/opt/zimbra/conf/postfix_header_checks
smtpd_use_tls = yes
queue_directory = /opt/zimbra/postfix-2.2.9/spool
newaliases_path = /opt/zimbra/postfix-2.2.9/sbin/newaliases
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_reject_unlisted_recipient = no
smtpd_tls_key_file = /opt/zimbra/conf/smtpd.key
command_directory = /opt/zimbra/postfix-2.2.9/sbin
smtpd_sasl_auth_enable = yes
mynetworks = 127.0.0.0/8 10.180.0.0/16
content_filter = smtp-amavis:[127.0.0.1]:10024

[SurrealSystems]

My server differs from the global settings:

MTA is: 127.0.0.0/8 10.180.0.0/16
and Enable DNS Check is off.

[mmorse]

I think he has general send/receive of mail? (I keep mentioning the dns checks-but him and john were working on it last night, and might have specifically set dns checks off?)

If you're talking about a relay Outgoing SMTP Authentication - Zimbra :: Wiki

su - zimbra
postconf

check your value's of these across the board
smtpd_use_tls
smtpd_tls_auth_only
smtpd_tls_key_file = /opt/zimbra/conf/smtpd.key
smtpd_tls_cert_file = /opt/zimbra/conf/smtpd.crt

If you want to get some more output:
smtp_tls_loglevel
0 Disable logging of TLS activity.
1 Log TLS handshake and certificate information. (what you have currently)
2 Log levels during TLS negotiation.
3 Log hexadecimal and ASCII dump of TLS negotiation process.
4 Log hexadecimal and ASCII dump of complete transmission after STARTTLS.

[SurrealSystems]

It should be on if you want mail delivery.

WORKED!

Thanks!

Hopefully thats it.

=)