We don't actually changed any settings on the amavis

# listen on multiple TCP ports. 9998 is used for releasing quarantined mails.
$inet_socket_port = [10024, 10026, 9998];

# Num of pre-forked children.
# WARNING: it must match (equal to or larger than) the number set in
# /etc/postfix/master.cf "maxproc" column for the 'smtp-amavis' service.
$max_servers = 10; # number of pre-forked children
$max_requests = 20; # retire a child after that many accepts

# Amavisd log level. Verbosity: 0, 1, 2, 3, 4, 5, -d.
$log_level = 0;
# SpamAssassin debugging (require $log_level). Default if off (0).
$sa_debug = 0;

# Listen on specified addresses.
$inet_socket_bind = ['127.0.0.1'];

This is the error that we got, i've attached the file

Apologies for the spam, i've attached the file for reference regarding of the error message

Apologies, it seems that the filed that I attached has not successfully imported, but here's the context logs

Dec  6 17:19:08 ip-10-250-3-46 roundcube: <nv8arucf> SMTP Error: Failed to add recipient 'john.smith@test-mail.domain.com'. 5.7.1 <john.smith@test-mail.domain.com>: Recipient address rejected: You are not authorized to sent to this domain. Kindly contact help@domain.com for assistance. Thanks! (Code: 554) in /opt/www/roundcubemail-1.1.3/program/lib/Roundcube/rcube.php on line 1708 (POST /mail/?_task=mail&_unlock=loading1670365147810&_lang=en_US&_framed=1?_task=mail&_action=send)

Unfortunately we already whitelisted the domain where it should be allowed to send an email to the target email address however, we still get this error

In addition, we saw this error as well sir

Blocked MTA-BLOCKED {RejectedInternal}, ORIGINATING LOCAL [209.85.214.197]:34336 [54.240.27.96] <01010184bec3a840-322fd8cb-974c-4fb5-982d-bc6a045a8774-000000@us-west-2.amazonses.com> -> <mary.s***@ro***-mail.*****.com>, Queue-ID: E5F63660C06, Message-ID: <01010184bec3a840-322fd8cb-974c-4fb5-982d-bc6a045a8774-000000@us-west-2.amazonses.com>, mail_id: ZEBjmR4P_8yv, Hits: -, size: 16129, dkim_sd=gdwg2y3kokkkj5a55z2ilkup5wp5hhxx:amazonses.com, 201 ms
Nov 28 10:03:50 ip-10-250-3-46 postfix/smtp[35961]: E5F63660C06: to=<mary.solis@ro***-mail.*********.com>, relay=127.0.0.1[127.0.0.1]:10026, conn_use=3, delay=0.88, delays=0.66/0/0/0.21, dsn=5.7.1, status=bounced (host 127.0.0.1[127.0.0.1] said: 550 5.7.1 id=31530-06-3 - Rejected by next-hop MTA on relaying, from MTA(smtp:[127.0.0.1]:10025): 550 5.7.1 Command rejected (in reply to end of DATA command))

We are using the amavis tool