Module development and code questions

Help I am getting a "warning: mail() [function.mail]: SMTP server response: 501 5.5.4 Invalid Address" error when I try to submit a form from the feedback form. I am using the feedback module.
I have a valid email address in my default email.
I do not have "Validate Senders Email Address" checked.
I am running the website off of my own server. My other email functions work. Individuals who sign up are able to get their emails.

Any help would be greatly appreciated.

Mattso

I've installed the TinyMCE Editor and source code according to instructions and using phpMyAdmin. It works perfectly on my Drupal testsite located on a apache server that i run as localhost. However I get this error:

I just installed image assist and have it working OK. I also have Tiny MCE installed, but I have it (the toolbar) disabled on my view by default b/c I prefer to type my tags in. (Tiny MCE is annoying sometimes) Anyway, I noticed img assist works only when the toolbar is enabled. So... I find myself enabling Tiny MCE, putting the picture in, disabling it, and typing away. Does anyone else get this problem? ie - is it something I did/didn't do, or is this a bug?

Thanks!

http://setmypeoplefree.com

Go to search on top right block and you'll see that the filter results by... gets cut off by the box.

How can I fix this?

And is there a way for me to add a black border around the grey box?

Hi There.
I did tweak the Search modulle a bit. No when user use search on my site all keywords are Highlighted.
Check out. It works great.

When I paste some text into the text area, it looses all the linebreaks. I tried everything in the settings of TinyMCE, but I seem not to be able to get it right.

Any help, please?

I am using Firefox 1.0.7 on MacOS 10.4.2.