How long before a message expires from the held queue?

Messages held in a queue for email security purposes typically have a defined expiration period after which they are automatically removed if not delivered. The reason 14 days is the correct timeframe for expiration is that it strikes a balance between allowing users sufficient time to resolve issues that may be preventing email delivery and ensuring that the system remains efficient by not holding onto undeliverable messages indefinitely.

The expiration policy helps in managing storage and ensuring that the system does not become overloaded with outdated messages. By setting the period to 14 days, it allows for recovery actions like troubleshooting delivery issues without excessive delays, while also encouraging timely action on messages that may need attention.

Other duration options, such as 30 days or longer, could lead to unnecessary retention of messages that are no longer relevant, while shorter durations could risk losing important messages that need more time for resolution. Thus, the 14-day period serves as a practical and effective duration for keeping messages in the held queue.