Google has announced new guidelines for mass email senders that will come into effect in April 2024. The tech giant warns that senders of unwanted mass emails to Gmail users will face increasing message rejections unless they comply with the new rules.

The new rules aim to protect Gmail users from unwanted mass emails. Google has confirmed that it will start rejecting a percentage of non-compliant email traffic from April onwards, gradually increasing the rejection rate. This enforcement will be gradual and progressive, with a slow and steady approach.

Temporary errors on a small percentage of non-compliant email traffic have already begun this month as part of the gradual enforcement process. Bulk senders will have until June 1 to implement one-click unsubscribe in all commercial and promotional messages.

These changes will specifically impact bulk emails sent to personal Gmail accounts. Senders of at least 5,000 messages a day to Gmail accounts will be required to authenticate outgoing emails and avoid sending unwanted or unsolicited email. The 5,000 message limit is calculated on emails sent from the same primary domain, and the guidelines apply to all senders, including those using Google Workspace accounts.

Overall, the new guidelines aim to provide improved security and more control for Gmail users, ensuring a better email experience for all.