Technical Guidance
By default, Microsoft 365 handles inbound emails failing DMARC for domains with a DMARC policy of reject the same way as if they had a policy of quarantine. Read more here about how Microsoft 365 handles inbound email that fails DMARC. Administrators can specify an action to be taken on emails classified as “spoof” through configuring an anti-phishing policy; however, none of these actions include rejecting the email with an error code. After all, a domain owner who has gone through the process of deploying a DMARC policy of reject would want to be alerted of emails being rejected. You may also wish to reject emails failing DMARC where your own domain is being spoofed. This can be achieved through the use of an Exchange mail flow rule. An email that failed DMARC where the domain has a reject policy published will be marked in the Authentication-Results headers by Microsoft
To ensure your Google Calendar invites make it to the intended destination, configure DKIM signing using these steps. The post How to get Google Calendar Invites to Pass DMARC appeared first on dmarcian.
For those of you that use Network Solutions as your DNS provider, here are brief instructions for publishing and adding a DMARC record. The post How to Publish a DMARC Record with Network Solutions appeared first on dmarcian.
SPF allows a domain owner to publish a list of servers that are allowed to send on behalf of a domain. When processing a domain’s DMARC data, dmarcian uses the domain’s SPF record to identify IPs that are authorized by the domain. The post SPF-Identified Servers—What is this Source? appeared first on dmarcian.
To fulfill dmarcian’s mission of spreading DMARC everywhere, partnering with Managed Service Providers (MSP) is essential. In order for that partnership to be successful, dmarcian created a solution that gives MSPs the functionality, tools and education to manage their clients’ DMARC projects through one application. The post How To Create a Client Group appeared first on dmarcian.
This guide describes the process for configuring Mailchimp to send DMARC-compliant messages. The post Source Guide: Mailchimp appeared first on dmarcian.
This guide describes the process for configuring SendGrid to send DMARC-compliant messages. The post Source Guide: SendGrid appeared first on dmarcian.
This guide describes the process for configuring Google Workspace to send DMARC-compliant messages. The post Source Guide: Google Workspace appeared first on dmarcian.
This source guide describes the process for configuring Microsoft 365 to send DMARC-compliant messages. The post Source Guide: Miscrosoft 365 appeared first on dmarcian.
As your DMARC advocate, we continue our lofty goal of cataloging each of the most popular sources, their DMARC capabilities and providing practical guidance on “how to” configure each to send DMARC-compliant messages. The post Top Source Guides appeared first on dmarcian.