I am using AWS SES in the Ireland region and S3 in the Frankfurt region to deliver emails.

When I try to configure email receiving to deliver to S3, I encounter the following error:

Unknown error: couldn't write to this bucket XYZ

I have checked all the documentation and Stack Overflow posts. I also tried setting the bucket policy as advised by AWS documentation, but it didn’t work due to the different regions.

Here is the documentation I referred to: AWS SES Receiving Email Permissions

That’s what AWS docs advice as bucket policy and it doesn’t work for me :

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowSESAssume",
            "Effect": "Allow",
            "Principal": {
                "Service": "ses.amazonaws.com"
            },
            "Action": "sts:AssumeRole",
            "Condition": {
                "StringEquals": {
                  "AWS:SourceAccount":"111122223333",
                  "AWS:SourceArn": "arn:aws:ses:region:111122223333:receipt-rule-set/rule_set_name:receipt-rule/receipt_rule_name"
                }
            }
        }
    ]
}