[kevinjohngallagher]

That makes sense.

You shouldn’t really need to change anything, thats the joy of the default mail() function. I’m not sure what drove you to make the changes in the first place (this 3+ year old thread isn’t the best place to get data, alot has changed since 2006).

I’d get rid of whatever changes you made, and then test on WordPress.

If that fails, then it’s off to the WordPress support forum for some help.

host said that it’s a script error and they can’t help

Did they happen to give you the error? that will help the WordPress folks sort it quicker