AWS SES目前仍然支持通过API Gateway和Lambda函数接收邮件。以下是一个Lambda函数示例，可以将收到的邮件转发到另一个邮件地址并将其存储在S3存储桶中。

import boto3
import email
import os

def lambda_handler(event, context):
    s3 = boto3.client('s3')
    ses = boto3.client('ses')
    
    # 如果事件为S3 PUT操作，则尝试将邮件转发到指定邮箱。
    if event['Records'][0]['eventSource'] == 'aws:s3':
        bucket_name = event['Records'][0]['s3']['bucket']['name']
        object_key = event['Records'][0]['s3']['object']['key']
        object = s3.get_object(Bucket=bucket_name, Key=object_key)
        email_raw = object['Body'].read().decode('utf-8')
        email_msg = email.message_from_string(email_raw)
        
        source_email = os.environ['SOURCE_EMAIL']
        destination_email = os.environ['DESTINATION_EMAIL']
        
        response = ses.send_raw_email(
            Destinations=[
                destination_email
            ],
            RawMessage={
                'Data': email_raw
            },
            Source=source_email
        )
        
        # 将邮件存储到指定的S3存储桶中。
        s3_target_bucket = os.environ['S3_TARGET_BUCKET']
        s3_target_prefix = os.environ['S3_TARGET_PREFIX']
        s3.put_object(Bucket=s3_target_bucket,
                      Key='{}/{}'.format(s3_target_prefix, object_key),
                      Body=email_raw.encode())