[SOLVED] email blacklisted error!

[tismo]

Good day Everyone. I have been getting this error in the postfix syslog for the past 3 days and have been searching for the solution since.
Now, I have replaced that email address with my main email address from gmail because I thought maybe using duck.com is not accepted in PBS.I am still getting the error in the syslog.
I have put in my gmail email address in Configuration >> Other
I also made sure it was entered in Email section within the user option under Access Control>>>user management.
I also looked under /etc/postfix/main.cf but didnt see the duck.com email address.

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

myhostname=pbs.mydomain.com

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
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

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = $myhostname, localhost.$mydomain, localhost
relayhost =
mynetworks = 127.0.0.0/8
inet_interfaces = loopback-only
recipient_delimiter = +

compatibility_level = 2

Can anybody help me figure out where it could be still lingering in the config somewhere?
PBS info:
client version: 3.0.4

Oct 25 19:47:33 pbs postfix/qmgr[809]: 140B320761: from=<root@pbs.mydomain.com>, size=1036, nrcpt=1 (queue active)
Oct 25 19:47:33 pbs postfix/qmgr[809]: DBFF920816: from=<root@pbs.mydomain.com>, size=1036, nrcpt=1 (queue active)
Oct 25 19:47:33 pbs postfix/qmgr[809]: D5D7520760: from=<root@pbs.mydomain.com>, size=1036, nrcpt=1 (queue active)
Oct 25 19:47:33 pbs postfix/qmgr[809]: 4A579208E7: from=<root@pbs.mydomain.com>, size=1224, nrcpt=1 (queue active)
Oct 25 19:47:33 pbs postfix/qmgr[809]: 7A0AA20811: from=<root@pbs.mydomain.com>, size=1036, nrcpt=1 (queue active)
Oct 25 19:47:33 pbs postfix/smtp[2537]: 62EF3207F7: to=<someone@duck.com>, relay=smtp-inbound1.duck.com[52.146.152.212]:25, delay=213079, delays=213079/0.01/0.32/0, dsn=4.0.0, status=deferred (host smtp-inbound1.duck.com[52.146.152.212] refused to talk to me: 554 host [xx.xxx.xx.xxx] is blacklisted by zen.dnsbl)
Oct 25 19:47:33 pbs postfix/smtp[2541]: 4A579208E7: to=<someone@duck.com>, relay=smtp-inbound1.duck.com[52.146.152.212]:25, delay=157197, delays=157197/0.03/0.3/0, dsn=4.0.0, status=deferred (host smtp-inbound1.duck.com[52.146.152.212] refused to talk to me: 554 host [xx.xxx.xx.xxx] is blacklisted by zen.dnsbl)
Oct 25 19:47:33 pbs postfix/smtp[2538]: 140B320761: to=<someone@duck.com>, relay=smtp-inbound1.duck.com[52.146.152.212]:25, delay=213404, delays=213403/0.01/0.32/0, dsn=4.0.0, status=deferred (host smtp-inbound1.duck.com[52.146.152.212] refused to talk to me: 554 host [xx.xxx.xx.xxx] is blacklisted by zen.dnsbl)
Oct 25 19:47:33 pbs postfix/smtp[2540]: D5D7520760: to=<someone@duck.com>, relay=smtp-inbound1.duck.com[52.146.152.212]:25, delay=213298, delays=213297/0.03/0.31/0, dsn=4.0.0, status=deferred (host smtp-inbound1.duck.com[52.146.152.212] refused to talk to me: 554 host [xx.xxx.xx.xxx] is blacklisted by zen.dnsbl)
Oct 25 19:47:33 pbs postfix/smtp[2539]: DBFF920816: to=<someone@duck.com>, relay=smtp-inbound1.duck.com[52.146.152.212]:25, delay=211579, delays=211579/0.02/0.32/0, dsn=4.0.0, status=deferred (host smtp-inbound1.duck.com[52.146.152.212] refused to talk to me: 554 host [xx.xxx.xx.xxx] is blacklisted by zen.dnsbl)
Oct 25 19:47:33 pbs postfix/error[2546]: 7A0AA20811: to=<someone@duck.com>, relay=none, delay=212795, delays=212795/0.36/0/0, dsn=4.0.0, status=deferred (delivery temporarily suspended: host smtp-inbound1.duck.com[52.146.152.212] refused to talk to me: 554 host [xx.xxx.xx.xxx] is blacklisted by zen.dnsbl)
Oct 25 20:11:39 pbs systemd[1]: Reloading Postfix Mail Transport Agent (instance -).
Oct 25 20:11:40 pbs postfix/master[807]: reload -- version 3.5.18, configuration /etc/postfix
Oct 25 20:11:40 pbs systemd[1]: Reloaded Postfix Mail Transport Agent (instance -).

 

[ggoller]

Hi!
I think your config did not get reloaded correctly... Did you execute: postfix reload ? You could also try postfix check to check that all configurations have been applied correctly.
The documentation is here: http://www.postfix.org/BASIC_CONFIGURATION_README.html

 

[tismo]

Hi!
I think your config did not get reloaded correctly... Did you execute: postfix reload ? You could also try postfix check to check that all configurations have been applied correctly.
The documentation is here: http://www.postfix.org/BASIC_CONFIGURATION_README.html

Thank you . I managed to fix it by setting up a sasl_passwd file. I had thought pbs would use the proxmox node email settings since it was a vm in the same host.
all is good thanks.