[General] relay this to Mr.Li

[Silverobama]

Hi.

If I have a message or something for Mr.Li but Mr Li isn't in the office right now, is it natural to say "Can you relay this to Mr.Li" to his secretary?

 

[Rover_KE]

No.

Can you give Mr Li a message, please?

 

[teechar]

Also "Can you give this to Mr Li please?"
This works for messages (notes) or other things.

 

[emsr2d2]

In BrE, there is no need to put a full stop after "Mr". However, if you do use one, you must put a space after it, before writing the surname.