Google has introduced new email guidelines. To comply with the guidelines, take note of the following:
- Emails sent from a Gmail sender address will now be routed through Zoho Books's internal email address.
- If your organization sends more than 5000 emails per day to Google's hosted domains, it's important to set up a special email security measure, DMARC, with the policy set to at least "None".
Check also new Google's guidelines https://support.google.com/a/answer/81126?sjid=12672854804696279689-AP
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