Gmail targets spam by making bulk senders have clear unsubscribe

To cut down on Gmail spam, Google is targeting bulk email senders and instituting new requirements, like straightforward unsubscribe

How to Unsubscribe From Emails Without Unsubscribe Link

Unsubscribe management in GMass: Auto removal with no manual work

How Do I Unsubscribe from All These Unwanted Emails? - Ask Leo!

How to send bulk email using Gmail (Post)

How to mass unsubscribe emails in Gmail - Clear our your inbox!

Only possible to unsubscribe from emails by sending a physical letter : r/assholedesign

7 of the best Gmail filters to organize your inbox

Cold email vs spam: 3 key differences to know

Sending guidelines - Mailmeteor Support

How to Send Bulk Email From Gmail