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Topic: reject: RCPT blocked using zen.spamhaus.org

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====


dovecot.conf
----------------
disable_plaintext_auth = no
ssl=yes


postfix/main.cf
-------------------
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
#smtpd_tls_auth_only = yes


mail.log
-----------------------
Oct 11 19:51:27 ip-*.*.*.* postfix/postscreen[17286]: CONNECT from [*.*.*.*]:47264 to [*.*.*.*]:25
Oct 11 19:51:27 ip-*.*.*.* postfix/dnsblog[17287]: addr *.*.*.* listed by domain zen.spamhaus.org as 127.0.0.11
Oct 11 19:51:33 ip-*.*.*.* postfix/postscreen[17286]: DNSBL rank 3 for [201.235.10.226]:47264
Oct 11 19:51:33 ip-*.*.*.* postfix/postscreen[17286]: NOQUEUE: reject: RCPT from [201.235.10.226]:47264: 550 5.7.1 Service unavailable; client [*.*.*.*] blocked using zen.spamhaus.org; from=<*@*.com>, to=<*@*.com>, proto=ESMTP, helo=<*>
Oct 11 19:51:33 ip-*.*.*.* postfix/postscreen[17286]: HANGUP after 0.22 from [*.*.*.*]:47264 in tests after SMTP handshake
Oct 11 19:51:33 ip-*.*.*.* postfix/postscreen[17286]: DISCONNECT [*.*.*.*]:47264


How can I allow plaintext thouth 25 port with disbling spam filter?

Thanks!

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Re: reject: RCPT blocked using zen.spamhaus.org

Instead of showing how to disable postscreen service or DNSBL services, i wonder why do you want to disable spam filter on port 25?

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Re: reject: RCPT blocked using zen.spamhaus.org

sorry it was a typo mistake, I need to allow plaintext login thouth 25 port, WITHOUT disable spam filter

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Re: reject: RCPT blocked using zen.spamhaus.org

FYI: https://docs.iredmail.org/enable.smtp.a … rt.25.html

By the way, if only some internal network devices need to auth on port 25, you should check this tutorial instead:
https://docs.iredmail.org/additional.smtp.port.html