The current inbox limit of 72 messages makes no sense, as 108 messages are delivered and available at any time.
If you quickly take 72 messages from your inbox, then immediately close and reopen your inbox, there will be up to 36 more waiting for you.
After taking the additional 36, you have to wait a few minutes for the next batch of 108 to become available. (or you can zone, which immediately delivers 108 new mails)
Please make this simple QoL change to help busy guildmasters and traders get through their mail queues just a bit faster.
PC NA - GM of Atrocious Love Letter and proud owner of an imgakin monkey