Mail delivery failed: returning message to sender
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For some reason, our form results are being blocked by Spamhaus. Client never receives the email but instead, we get an email with the following error:
“A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:[email protected]
host mx5.mail.icloud.com [17.158.8.111]
SMTP error from remote mail server after RCPT TO:<[email protected]>:
550 5.7.1 Mail from IP 192.185.83.211 was rejected due to listing in Spamhaus XBL. For details please see https://www.spamhaus.org/query/bl?ip=192.185.83.211 :
[email protected]
[email protected]
host mx4.mail.icloud.com [17.158.8.51]
SMTP error from remote mail server after RCPT TO:<[email protected]>:
550 5.7.1 Mail from IP 192.185.83.211 was rejected due to listing in Spamhaus XBL. For details please see https://www.spamhaus.org/query/bl?ip=192.185.83.211 :
[email protected]What can I do to resolve this?
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