Or someone requests information that had been recently posted or discussed on one of the lists.
When I first subscribed to QRP-L years ago, I made the same mistake – subscribing without disabling emails. Many readers of this list are aware of the two options they have for receiving posts from other list members: individually, as many separate emails or via a daily digest.
There’s a third option – turn off email entirely and read each list via the web. You’ll have to change the url for each list on the first day of each month but this method eliminates email and allows you to easily see which messages you want to read, based on subject or author.
For QRP-L (user/password is “qrpl”), bookmark this address…
And for Elecraft, this one.
And magically, no unwanted emails, yet full functionality with the ability to go back days (or months) to catch up or look for that message you lost.