It looks like there might be a slight misunderstanding, “e” is pronounced as the e in “metal”, “test”, “wrench”.
We do not use a different sound for it, and it does not rhyme with hey at all :D
Adding the H to some of these letters wouldn’t give the right sound for native english speakers
I think the only one that could be tricky would be the “uh” since it could be confused with the interjection “uhhh”, but as you mentioned, it is indeed pronounced as “oo”.
It looks like there might be a slight misunderstanding, “e” is pronounced as the e in “metal”, “test”, “wrench”.
We do not use a different sound for it, and it does not rhyme with hey at all :D
I think the only one that could be tricky would be the “uh” since it could be confused with the interjection “uhhh”, but as you mentioned, it is indeed pronounced as “oo”.
Perhaps it’s just dialectal differences. I live in colombia and what I hear daily is an e sound that rhymes with hey, hay, or may.