contactsiosipadmac
If I send an e-mail to a contact, how long will it show as "recent"?
I wonder because when I look at one of my contacts, it has an option at the bottom of the screen that says "Remove from Recents", but I don't recall having contacted this person in over a month. This is an iPhone 6 and I also use an iPad.
Honestly, I believe that this is a bug in mail.app.
I think that if you report it to https://bugreport.apple.com, they'll give you some scripts to run, and will ask you to send some special logs.
I know this isn't a "solution", but maybe it will help improve the app for all of us..
It appears Spotlight does not make use of Address Book plug-ins.
Extra menu items added by Skype also fail to appear in the Spotlight preview.
It is worth providing feedback to Apple asking for this functionality to be added. It would greatly improve Spotlight.
Best Answer
I think "recents" stay in the "recents" menu until it gets pushed out by more "recents".