> it may be that they're uniquely subaddressing their email addresses (although this is extremely rare) That “extremely rare” is about plus-addressing. My expe

> it may be that they're uniquely subaddressing their email addresses (although this is extremely rare) That “extremely rare” is about plus-addressing. My experience is that catch-all subaddressing (e.g. *@chrismorgan.info in my case) is considerably more popular, only rare rather than extremely rare.