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Wednesday, April 3rd, 2024 9:27 PM

550 5.7.1 Sender rejected

1. host mx03.earthlink-vadesecure.net [51.81.232.218]
    SMTP error from remote mail server after pipelined sending data block:
    550 5.7.1 Sender rejected - ELNK001_303 -https://postmaster-earthlink.vadesecure.com/inbound_error_codes/#_303
2. 550 5.7.1 Service unavailable, Client host [66.96.189.5] blocked using Spamhaus. To request removal from this list see https://www.spamhaus.org/query/ip/66.96.189.5 AS(1440) [CO1PEPF000044F8.namprd21.prod.outlook.com 2024-04-03T15:45:47.800Z 08DC50295D9D351D]
@elyzabethv  Please assist with this concern. Thanks!

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