SQS Message format
SQS message is in form of a token representing the message of the Producer, and not the message itself.
FIFO (Performance)
FIFO (Performance) 3,000 messages per second with batching, or up to 300 messages per second without
SQS Retention
Message can stay on SQS queue for up to 14days
Queue Policy
Like Bucket Policy, happens on the queue itself.