How would the next sentence be correct ?
Shall I send the letter by email or post?
Or is it via email, or as an email...?
'Via', 'by', 'as an' --all fine for 'email'. I'm not sure that 'as a' works as well with 'post'.
We often use the joking and rhymning term 'snail mail', to suggest that regular mail is slow.
By email and by post are two different things. Whether using by email or by post depends on your meaning.
Shall I send the letter via email or post?
Thank you for answering, however I don't really understad it.
"By email and by post are two different things. Whether using by email or by post depends on your meaning"
What do you mean by two different things? I mean of course the post and the email are two different things, but how can it depend on my meaning? What "I would like to mean" is, that which way shall I send the letter, through the net, or through the post? I just don't know, wheter using "by" is correct in this case or not at all?
"By" is used when we do something "by" a particular means, such as by car, by bus, by sun etc.
So, "by post", "by mail" " by email" are correct.
"Via" carries the same meaning as "by". When we do something via a paritcular means of person, we do it by making use of that means or person.