4. Publish a DMARC policy for your organization
To help your business avoid damage to its reputation from phishing attacks and impersonators, G Suite follows the DMARC standard. DMARC empowers domain owners to decide how Gmail and other participating email providers handle unauthenticated emails coming from your domain. By defining a policy and turning on DKIM email signing, you can ensure that emails that claim to be from your organization, are actually from you.
5. Disable third-party email client access for those who don’t need it
The Gmail clients (Android, iOS, Web) leverage Google Safe Browsing to incorporate anti-phishing security measures such as disabling suspicious links and attachments and displaying warnings to users to deter them from clicking on suspicious links.
By choosing to disable POP and IMAP, Google Sync and G Suite Sync for Microsoft Outlook, admins can ensure that a significant portion of G Suite users will only use Gmail clients and benefit from the built-in phishing protections that they provide. Additional measures include enabling OAuth apps whitelisting to block third-party clients as suggested earlier in the blog.
Note: all third-party email clients, including native mobile mail clients, will stop working if the measures outlined above are implemented.
Original article Published here >
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