A phobia of small spaces is called claustrophobia.
Ntomataphobia
From what I understand there is no specific phobia for people who are afraid of mail. Most just call it Mail Phobia...
laceaphobia
Triskadekophobia.
Gynophobia :D
I am not sure of the name but yes, people can have a phobia of anything, for example, my friend is scared of tomato ketchup.
In the Philippines we call it Bigscotsjessieitus
social phobia
Anorexia nervosa
Telephobia of course.
a fear or phobia