Hello, I'm reaching out on behalf of GreenArrow Email <https://www.greenarrowemail.com/>. We are migrating a new sender to our service and they are struggling with delivery at Proofpoint. They are not blocked but we are seeing deferrals and bounces across their dedicated IPs including:
421 mx0a-001d2f01.pphosted.com closing connection 421 mx0a-002a2102.pphosted.com closing connection 550 5.7.0 Local Policy Violation 550 5.7.0 Message not accepted as it appears to be spam (IS) I reached out to the postmaster address on Friday 11/14 from my work address, [email protected] but have not received a response. I'm hoping a member of the Proofpoint Team could connect with me so I can provide additional information and assist this sender. Thank you, Jess Swazey GreenArrow Email
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