On 5/28/24 7:13 PM, Bill Cole via Postfix-users wrote:
On 2024-05-28 at 19:04:37 UTC-0400 (Tue, 28 May 2024 19:04:37 -0400)
John Hill via Postfix-users <[email protected]>
is rumored to have said:
On 5/28/24 6:54 PM, Bill Cole via Postfix-users wrote:
-o { smtpd_client_restrictions=permit_mynetworks,reject_rbl_client
xbl.spamhaus,org=127.0.0.4,permit_sasl_authenticated,reject }
tried to rspond
Sending of the message failed.
An error occurred while sending mail. The mail server responded:
<[email protected]>: Sender address rejected: Email blocked by security
policy.
Please check the message recipient "[email protected]" and
try again.
What does the log say about that attempt?
I believe that specific text indicates a problem in
smtpd_sender_restrictions.
May 28 19:02:04 proteus.noach.com opendmarc[504352]: ignoring
connection from gibson.noach.com
May 28 19:02:04 proteus.noach.com postfix/submission/smtpd[504893]:
discarding EHLO keywords: CHUNKING
May 28 19:02:04 proteus.noach.com postfix/submission/smtpd[504893]:
Anonymous TLS connection established from
gibson.noach.com[192.168.200.253]: TLSv1.3 with cipher TLS_AES_128_GC
M_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS
(2048 bits) server-digest SHA256
May 28 19:02:04 proteus.noach.com postfix/submission/smtpd[504893]:
discarding EHLO keywords: CHUNKING
May 28 19:02:09 proteus.noach.com postfix/submission/smtpd[504893]:
NOQUEUE: reject: RCPT from gibson.noach.com[192.168.200.253]: 554
5.7.1 <[email protected]>: Sender address rejec
ted: Email blocked by security policy; from=<[email protected]>
to=<[email protected]> proto=ESMTP helo=<[192.168.200.253]>
May 28 19:02:09 proteus.noach.com postfix/submission/smtpd[504893]:
too many errors after RCPT from gibson.noach.com[192.168.200.253]
May 28 19:02:09 proteus.noach.com postfix/submission/smtpd[504893]:
disconnect from gibson.noach.com[192.168.200.253] ehlo=2 starttls=1
auth=1 mail=1 rcpt=0/1 commands=5/6
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