Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
1,251 questions
ACS rDNS records misconfigured
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Justin Moore
0
Reputation points
For example:
• IP: 104.47.55.55
• HELO: NAM10-MW2-obe.outbound.protection.outlook.com
• rDNS: mail-mw2nam10acsn2055.outbound.protection.outlook.com
HELO and rDNS must match or emails will be delivered to the spam folder.
This is a duplicate of: https://learn.microsoft.com/en-us/answers/questions/2083603/ptr-record-mismatch-causing-email-delivery-issues
Azure Communication Services
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