Feature: Use mailing_list_id as label in /characters/{character_id}/mail/

[antihax]

Feature request

Allow mailing_list_id as a label to /characters/{character_id}/mail/ so we can filter to just mails received on a mailing list to allow easier real time access to mailing list mails.

Also add the Trash mailbox to the API.

Route

/characters/{character_id}/mail/

Authentication

Yup

Use case

Seamlessly filter mail headers to mailing lists like we can with Inbox, Corp, Alliance, etc.

Example returns

Same as current, but filtered to mailing_list_id

[antihax]

FYI trying to replicate the in game representation of mails in external client.

The "Concord LP" mailing list shows as a seperate mailbox. But there is no way to pull just mails from that mailing list via API to replicate the functionality.

In Game

Out of Game

The Trash mailbox above is default on most clients, there is currently no way to access the Trash mailbox via API with labels.

 Labels:[{UnreadCount:0 LabelId:1 Name:Inbox Color:#ffffff} 
{UnreadCount:0 LabelId:2 Name:Sent Color:#ffffff} 
{UnreadCount:1 LabelId:4 Name:[Corp] Color:#ffffff}
 {UnreadCount:0 LabelId:8 Name:[Alliance] Color:#ffffff}]}```

[SpeedProg]

This feature is nice but wouldn't it make more sense to add an other parameter for this since it is no label? (or is it?)