Message ID for notification mails regarding the same FOI request

[rugk]

Problem

When you get a lot of mails for a lot of (your own or followed) requests it is somewhat hard to keep track of all. One problem is that there is one mail for each reply and each sent message (even if it is just a reminder mail).

Proposed solution

Could not you use Message IDs for each FOI request n your notification mails? This would allow mail clients to group them together, so I can easily delete all mails for old notifications, as I only need to click the link on the latest mail and read everything there. Afterwards, I can delete all mails regarding the one case together.