Hello,
we received this morning an email from Amazon SES :

Hello,
In a move to safeguard user inboxes, Gmail [1] and Yahoo Mail [2] announced a new set of requirements for senders. Effective February 2024, the new requirements affect email senders who distribute over 5,000 bulk messages per day or have >0.3% of messages reported as spam. Failure to comply with the new requirements may result in Gmail and Yahoo rejecting message delivery to their customers.
For more information on the new mailbox provider requirements and how to comply, please visit the AWS blog [3]. If you have any questions or concerns, please reach out to AWS Support [4].
[1] https://blog.google/products/gmail/gmail-security-authentication-spam-protection/
[2] https://blog.postmaster.yahooinc.com/post/730172167494483968/more-secure-less-spam
[3] https://aws.amazon.com/blogs/messaging-and-targeting/an-overview-of-bulk-sender-changes-at-yahoo-gmail/
[4] https://aws.amazon.com/support
Sincerely,
Amazon Web Services

Amazon Web Services, Inc. is a subsidiary of Amazon.com, Inc. Amazon.com is a registered trademark of Amazon.com, Inc. This message was produced and distributed by Amazon Web Services Inc., 410 Terry Ave. North, Seattle, WA 98109-5210

Reference: https://health.aws.amazon.com/health/home?region=us-east-1#/event-log?eventID=arn:aws:health:global::event/SES/AWS_SES_OPERATIONAL_NOTIFICATION/AWS_SES_OPERATIONAL_NOTIFICATION_0bd12c18f13c36593580b2109d07d27908fa1167f92518938e6b116637674ea0&eventTab=details

Do you think we need to do something on Acymailing configuration or ?
Thanks
Olivier