Not coloring like logs on changing extension

[ishandutta2007]

My logs are dumped at /var/mail/ishandutta2007
So in ~/.vimrc instead of
autocmd BufRead,BufNewFile *.log set syntax=log4j
I entered:
autocmd BufRead,BufNewFile /var/mail/ishandutta2007 set syntax=log4j

[tetsuo13]

autocmd is used to denote a file extension that you want to force the log4j syntax for. Specifying *.log means any file opened with the ".log" extension will be applied. In your example, you specified a root directory however. If you mean that any file under this directory should use the log4j syntax then you might want to try something like this:

autocmd BufRead,BufNewFile /var/mail/ishandutta2007/* set syntax=log4j

[ishandutta2007]

still no luck :(

[ishandutta2007]

@tetsuo13 Pasting my full terminal view to confirm that I haven't missed any step.

ishandutta2007@MacBook-Pro:~/Dropbox$ cat ~/.vimrc

autocmd BufRead,BufNewFile /var/mail/ishandutta2007/* set syntax=log4j

ishandutta2007@MacBook-Pro:~/Dropbox$ ls ~/.vim/syntax
log4j.vim

ishandutta2007@MacBook-Pro:~/Dropbox$ cat ~/.vim/syntax/log4j.vim

" Apache log4j and log4php syntax file.
" Language:    Apache log4j/log4php log file
" Maintainer:  Andrei Nicholson <contact@andreinicholson.com>
" Last Change: 2012-07-06
" Version:     0.3
"
" While it's possible to define any sort of pattern via PatternLayout (log4j)
" or LoggerLayoutPattern (log4php), this syntax file focuses on the default
" TTCC layout TTCC layout with conversion pattern set to:
"
"     %d{m/d/y H:i:s,u} [%t] %p %c %x - %m%n

if version < 600
    syntax clear
elseif exists("b:current_syntax")
    finish
endif

syn case ignore

" First element must be abbreviated month. Could be a better way.
syn match log4jHeader    "^[a-z]\{3}.\{-} - " contains=log4jDate,log4jProcessid,log4jLogger,log4jErrorlevel
syn match log4jDate      contained "^[a-z]\{3} [a-z]\{3}\s\{1,2}[0-9]\{1,2} [0-9]\{2}:[0-9]\{2}:[0-9]\{2} [0-9]\{4}\(,[0-9]\{3}\)\?"
syn match log4jProcessid contained "\[[0-9]*\]"
syn match log4jLogger    contained "[a-z\-.]* -"

syn case match

syn match log4jErrorlevel contained "\(DEBUG\|ERROR\|FATAL\|INFO\|TRACE\|WARN\)"

if version >= 508 || !exists("did_log4j_syntax_inits")
    if version < 508
        let did_log4j_syntax_inits = 1
        command! -nargs=+ HiLink hi link <args>
    else
        command! -nargs=+ HiLink hi def link <args>
    endif

    HiLink log4jDate       Type
    HiLink log4jErrorlevel Keyword
    HiLink log4jProcessid  Function
    HiLink log4jLogger     Delimiter

    delcommand HiLink
endif

let b:current_syntax = "log4j"

ishandutta2007@MacBook-Pro:~/Dropbox$