Email from daviesprinting.com flagged as spam (541 5.7.1)

I am the geek for the daviesprinting.com domain. We host our own mail services.

We are getting the error

541 5.7.1 Mail rejected due to antispam policy (in reply to RCPT TO command)

whenever we send to the rochestertennis.com domain which appears to be hosted by zohomail. I am trying to figure out what the issue is so I can correct it. All of the services that I check are coming up clean. This is what I am getting for a digital trail:

<accounting@rochestertennis.com>: host mx2.zohomail.com[XX.XX.XX.XX]
said:
541 5.7.1 Mail rejected due to antispam policy (in reply to RCPT TO
command)
Reporting-MTA: dns; mail.daviesprinting.com
X-Postfix-Queue-ID: 1042DA47D69
X-Postfix-Sender: rfc822; <USER>@daviesprinting.com
Arrival-Date: Thu, 27 Jan 2022 12:08:43 -0600 (CST)
Final-Recipient: rfc822; <USER>@rochestertennis.com
Original-Recipient: rfc822;<USER>@rochestertennis.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; mx2.zohomail.com
Diagnostic-Code: smtp; 541 5.7.1 Mail rejected due to antispam policy

Message Header

Return-Path: <USER>@daviesprinting.com>
Received: from authenticated-user (mail.daviesprinting.com =
[XX.XX.XX.XX])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
(No client certificate requested)
by mail.daviesprinting.com (Postfix) with ESMTPSA id 1042DA47D69
for <<USER>@rochestertennis.com>; Thu, 27 Jan 2022 12:08:43 -0600 =
(CST)
DKIM-Signature: v=3D1; a=3Drsa-sha256; c=3Drelaxed/simple; =
d=3Ddaviesprinting.com;
s=3Dmail; t=3D1643306923;
bh=3DLZ+HNKIsX8WejdUDNmjqHfZ59bgACJWeJroWmrWwIBw=3D;
h=3DFrom:To:References:In-Reply-To:Subject:Date:From;
b=3DvDJ/xvmVzFPa8s83nQ29wyyEwn7C2bOG8uVeVB7jrGo4yIpzogrmiaAyaz9CgHRZg
BCgrYWirZ9KNboTekefpD3DOGxcM8XKxYGG52US79Olom1fxeDyKw7NFyywG0W5aI7
bIL3znXpJD+lecxH0kCtbn471XwMTj1cYqaWblIF/bXLye5dL9gNpQGJVxMKThS2BX
6+cRZgnUaYn8e0C9Jpr6Xa2CD21nnUFXofAeaY7UWPsGbXWoguujeaMOhRsW3vOffe
4t7d0s3iqb6+sbpGbNUoOXV/OSGGIEwTsebvaDCTGytU3/ut2Me/Iv3dpJT2IPaooS
FJVqry/NdFNWA=3D=3D
From: <<USER>@daviesprinting.com>
To: <<USER>@rochestertennis.com>
References: =
<20220127120347EF.DCSML-S000520000.002673140EED@daviesprinting.com>
In-Reply-To: =
<20220127120347EF.DCSML-S000520000.002673140EED@daviesprinting.com>
Subject: FW:=20
Date: Thu, 27 Jan 2022 12:08:42 -0600
Message-ID: <010001d813a8$eb3ee230$c1bca690$@daviesprinting.com>
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary=3D"----=3D_NextPart_000_0101_01D81376.A0A47230"
Thread-Index: AQEdnZZNIVy40xMpU2ukTzidrXqdC63sFmhQ
Content-Language: en-us

Is there more information on why this was rejected?

Thanks!

Tim Rinkel

Zoho Desk Resources

Desk Community Learning Series
Digest
Functions
Meetups
Kbase
Resources
Glossary
Desk Marketplace
MVP Corner
Word of the Day

Topic Participants
trinkel
Sagar S
CONTACTO QUANTUMSOF
MGL IT

Sticky Posts
Zoho Mail POP & IMAP Server Details
Hello all! We have been receiving a number of requests regarding the errors while configuring or using Zoho Mail account in POP/ IMAP clients. The server details vary based on your account type and the Datacenter in which your account is setup. Ensure
Important update on Group Management | Zoho Mail
Dear Zoho Mail Community, This post is to inform you all of the following updates on the Group Management in Zoho Mail. Group Member Addition: If a group member is added to an organization group in a Zoho Application, the member will be automatically
Mastering email etiquette and best practices to follow in Zoho Mail
Hello Zoho Mail Community, We’re thrilled to invite you all to our upcoming webinar: Mastering email etiquette and best practices to follow in Zoho Mail. Join our live webinar for expert etiquette tips to enhance your professionalism and elevate your
📣 📣 ZUG Meetups India - Explore Hybrid Workspaces using Zoho Workplace - Meet and Learn! 🧑🏽‍💻🧑🏽‍💻
We are excited to announce the User Community initiative to meet you all in person and help you explore the need of the hour - Hybrid Workspaces using Zoho Workplace. We aim to help you to setup your Digital Workplace effectively so that your employees
Announcing Zoho Mail - Inactive user Policy
Dear Zoho Mail users, Thanks to all of you for your continuous support. We have recently started implementing the Inactive User Policy, for Zoho Mail. A user is considered as inactive, if the user has not logged in to the Zoho mail account for a period of more than 120 days. The login through POP, IMAP and Active Sync are all taken into account for tracking the period of inactivity. Whoever received the communication need not panic, as we have just communicated our policy to all the users. To