When I send emails from my Helm server to an iCloud address, my work address, or even Helm Support - I get an undeliverable message as follows. Is my IP blocked by Verizon how can I get off of this list?
This is an automated email from your Helm Server.
I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.
For information about why this might happen visit our support
<firstname.lastname@example.org>: host mx01.mail.icloud.com[220.127.116.11] said: 550 5.7.1
Mail from IP 18.104.22.168 was rejected due to listing in Spamhaus PBL. For
details please see http://www.spamhaus.org/query/bl?ip=22.214.171.124 (in
reply to RCPT TO command)
Reporting-MTA: dns; helm.airmailpost.net
X-Postfix-Sender: rfc822; email@example.com
Arrival-Date: Sun, 6 Mar 2022 02:49:28 +0000 (UTC)
Final-Recipient: rfc822; firstname.lastname@example.org
Remote-MTA: dns; mx01.mail.icloud.com
Diagnostic-Code: smtp; 550 5.7.1 Mail from IP 126.96.36.199 was rejected due to
listing in Spamhaus PBL. For details please see