Lucian Florian

You should change the settings from Control Panel you form panel administration. Which contact form plugin do you use?
I would also try testing with other email address.

I didn’t understood your first question.
In this case you need to add it in single.php page and if is on this page can stay inside the loop.

That if you run it locally, if you use a hosting provider, change it. It’s not normal to run that slow.

To answer your question, wordpress will work with any file in its directory except index.html which will load instead.
However it is a good practice to redirect old files and than delete them or even better keep the backed-up in a separate folder.

You should add the comment code in your index.php page outside the loop.

Do you have a webmaster who has access there?

This is a WordPress related issue not the plugins fault. You can try with other SEO plugins and you will have the same issue.

The code I gave you is just for blog and home page titles. You can still control the titles of other pages from admin panel.

The good part is that you don’t change those titles too often. Search engines don’t really like that. Set and forget.

You can hard code the title for home page, assuming in reading options you have a static page set for front page and a different one for blog.

Using my code from above, you can replace: <title>any title you want | <?php bloginfo('name'); ?></title>

so on home page it will be displayed:
any title you want | your blogname