Where is the “\n” to “<br>” code for blog by email?

That is all added in post-processing, for the actual display of the post. The wpautop function handles most of it.

What page is that in?

Why not search through it? Use an editor like TextPad and hit ctrl-f5 to text search through multiple files.

Cause I’d have to open all of the files, didnt know if someone just knew off the top of their heads.

Why would you have to open all the files? Like I said, Textpad can search through multiple files. Without opening them.

For that matter, Windows built in search is perfectly capable of finding text in a file in a directory, it’s just really annoying to use.

Get a good editing program that can search multiple files. You don’t need to open them all one by one.

I’m planning on using the phone_content filter to strip the newlines from the email text.

You need to call add_filter for the hook phone_content. In your function that filters the message, you need to do the following:

$new_content = str_replace(array(“\r\n”, “\r”), “\n”, $content);
$new_content = ereg_replace(“([^\n])\n([^\n])”, ‘\1 \2’, $new_content);

The first line handles the different forms of end-of-line markers. The second line converts all single newlines to spaces.

Give it a try.