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Microsoft 365 - Approve Constant Contact to Send DMARC-Compliant Email from My Domain

This document will provide the steps necessary to set up custom domain authentication for Constant Contact, approving Constant Contact to send DMARC-compliant email from addresses in your organization's subdomain (e.g.

Information about the protection of UW-Madison email with DMARC can be found here: Email Authenticity

Note: approving a third-party email vendor to send email as/from addresses (e.g. is not permitted. Only approve third-party email vendors to send email as/from addresses in your subdomain (e.g.

Keywordsdomain based message authentication reporting conformance name system naming TXT SPF DKIM CNAME restrictive report forensic aggregate quarantine reject uw madison list server email header reply-to google groups administrators smtp IP addresses caution external "[CAUTION: External]" tagging subject mailman mail-man forwardersDoc ID89150
OwnerO365 S.GroupMicrosoft 365
Created2019-01-17 14:27:00Updated2023-02-02 09:01:45
SitesDoIT Help Desk, Microsoft 365
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