Messages sent to iCloud or me.com emails rejected

I have a me.com email address. When leaders use LCR to contact a list of individuals, they get a reject notice:

From: Mail Delivery Subsystem <MAILER-DAEMON@ldschurch.org>
Sent: Tuesday, January 19, 2021 8:22 PM
To: jake@billsmithelectric.com
Subject: Returned mail: see transcript for details

The original message was received at Tue, 19 Jan 2021 19:15:54 -0700
from mail11.gmhwh.org [127.0.0.1]

----- The following addresses had permanent fatal errors -----
<rtonkinson@me.com>
(reason: 550 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lo ... 49.179.101)

----- Transcript of session follows -----
... while talking to mx02.mail.icloud.com.:
<<< 550 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lo ... 49.179.101
... while talking to mx01.mail.icloud.com.:
<<< 550 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lo ... 49.179.101
554 5.0.0 Service unavailable
—————————————————
What can be done to fix this? I went to ProofPoint which Apple apparently uses as a spam filter and it said that IP address 216.49.179.101 was blocked. Please help!

rtonkinson wrote:What can be done to fix this? I went to ProofPoint which Apple apparently uses as a spam filter and it said that IP address 216.49.179.101 was blocked. Please help!

I'm seeing it as "not blocked'"

I'd think the issue would have to be taken up with the "blocker" (ProofPoint) as to why they're blocking instead of the blockee (the church).

I have done gone to proofpoint as well. There it says that those who are blocked can do certain things to get unblocked. Thus, I’m posting here in the hopes the Church can do something from its end as apparently proofpoint views the Church as a spammer in this particular application and IP address.