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Email - Setting up SPF, DKIM & DMARC

Setting up email authentication is crucial for ensuring the security and trustworthiness of your email communication. Email authentication involves implementing various protocols and records like SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance). These mechanisms help verify the legitimacy of your email senders and protect your domain from unauthorized use. To set up email authentication, you'll need to configure your DNS records to include these authentication methods, generate DKIM keys, and establish DMARC policies. Properly configuring these protocols will reduce the likelihood of your emails being marked as spam and enhance your domain's reputation, leading to improved deliverability and trust among your recipients.

Prevent spam, spoofing & phishing with Gmail authentication | Set up SPF, DKIM & DMARC for your organization

Gmail administrators should set up email authentication to protect their organization's email. Authentication helps prevent messages from your organization from being marked as spam. It also prevents spammers from impersonating your domain or organization in spoofing and phishing emails.

If spammers send forged messages using your organization's name or domain, people who get these messages might report them as spam. This means legitimate messages from your organization might also be marked as spam. Over time, your organization's internet reputation can be negatively affected.

Email authentication requirements for sending to Gmail accounts

Google performs random checks on messages sent to personal Gmail accounts to verify messages are authenticated. To help ensure messages you send to Gmail accounts are delivered as expected, you should set up either SPF or DKIM for your domain. Messages without at least one of these authentication methods are rejected with a 5.7.26 error, or are marked as spam. We recommend you always set up SPF and DKIM to protect your organization’s email, and to support future authentication requirements.

If you use an email service provider, verify that they authenticate your organization's email with SPF or DKIM.

If you regularly forward email, be sure to follow Best practices for forwarding email to Gmail to help ensure your messages are delivered as expected.

About email authentication

Set up standard email authentication methods for Gmail, and help ensure message delivery and prevent valid messages from being marked as spam. These videos describe how email authentication benefits your organization, and how to set up authentication.

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