I’ve been making one of my periodic attempts to catch up on my e-mail (read: if you wrote me three weeks ago, your odds of getting a reply sometime this coming week are less worse than usual). That process has required me to think about something I normally avoid: deleting e-mail.

My usual habit is to keep everything that’s not outright spam, just in case I might need to look it up later on. Messages from friends and family are of obvious importance, reader e-mail may provide early evidence of a problem that becomes widespread months later, and correspondence from co-workers can have documentary value about a company’s progress or decline. Even PR pitches can have lingering usefulness, by providing the contact info that too many companies can’t think to post on their own sites.

And yet if a search will yield hundreds of messages including the same keyword, I’m going to have a hard time locating the one or few messages I had in mind. Something’s got to go.

The easiest items to delete are the automated notifications and reminders I get from various services I’ve signed up–Twitter, Eventbrite and Meetup, I’m looking at you. The utility of those messages to me usually expires within 24 hours, tops. When those notifications duplicate the ones that already pop up on my phone. my tablet or OS X’s Notification Center, they’re pointless from the moment of their arrival.

(You may have seem this kind of requested, not-spam mail labeled bacn. Not long after that term came about, I wrote that “dryer lint” would be more descriptive and less cutesy, but everybody seems to have ignored that suggestion.)

Then come newsletters that attempt to recap headlines in various categories. Even if I read these almost every day–the American Press Institute’s Need to Know and Morning Consult’s tech newsletter come to mind–they’re little help to me the day after, much less six months down the road. I look for day- or months-old news headlines on the Web, not in my inbox.

Ideally, I could set a filter in my mail client to delete designated notifications and newsletters 24 or 48 hours after their arrival. But although Gmail will let you construct a search like that using its “older_than” operator to scrub stale Groupon offers from your inbox, its filters don’t seem to include that option. And the filters in Apple’s Mail, which don’t seem to have been touched by any developers in the last five years, are of no use in this case either.

Do any other mail clients offer this capability? If not, any interested mail developers are welcome to consider this post a formal feature request.