deliver mail / post

Hi,

(a) He delivers (the) post/ (the) mail in the morning.
(b) The postman delivers mail to the house.


In N. America, we say 'mail, mailman'. 'Post/postman' is British English.

Clive

Vincent TeoCan I say,

(a)He delivers post in the morning.
(b)The postman delivers mails to the house.

(a) sounds OK.
(b) needs to be "The postman delivers MAIL to the house." The word "mail" is called a mass noun, and these typically don't have plurals and can't be preceded by numbers. So, you don't hear "three mails" or

What are the differences between "deliver mail " / letters"?

Can I say,
(b)The postman delivers letters / mails to the house.

Hi,

What are the differences between "deliver mail " / letters"?

Can I say,
(b)The postman delivers letters / mails to the house.

As already noted, you can't add ess to the word 'mail'.

'Mail' includes letters and other things, eg postcards, flyers, even parcels.

Clive

Vincent TeoWhat are the differences between "deliver mail " / letters"?

Can I say,
(b)The postman delivers letters / mails to the house.

Hi Vincent

'Mail' is both the singular and plural form; 'email' is singular and 'emails' is plural.