I went to your site and looked at the code on the htm side and it looks ok, but when I tried to go to this url directly, http://premier-paintinginc.com/mailer.php, it gets a page not found. I tried with the /index_htm_files/ folder as well, but it wasn't found there either. I tried with the .txt name as well, just to be sure that it somehow failed the rename. Didn't find that either.
We can't see the folder/file list from the public side, so I can't tell much more than it seems that the .php file is not where it needs to be.
Does that help?
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