Curious to see if anyone might know – I’m writing to a previous professor for a letter of recommendation (推薦状), and in the conversation I’m specifying how I need two of them total. But would a letter of recommendation use the general counter for two (つ), or the counter for flat things (まい)?
A letter would be flat in my mind, and I know paper items fall into the まい usage. But it’s also not a physical letter – it’ll be electronic. So does that change the counter?
I just wanted to see if anyone might have experience with this, or else get some opinions. Thanks in advance!