Remote host said: 554 5.1.0 Sender denied

If you get the following when sending a message to someone using exchange 2007 or higher. 

Remote host said: 554 5.1.0 Sender denied

Seems like a server side error but actually now outlook or OWA on the application can cause this issue. If a user adds the email address or domain to the block list it will come back with Sender Denied. 

 

Facebook Fanpage generating following error

Example: Limits have been placed on (your fan page)
Your Page's posts are blocked from appearing in News Feed. This limit is temporary and expires Saturday, October 27 at 12:49pm.

And you can
do one of the following
Learn More  - Appeal

here is a screen print:

I went ahead and Appealed, this! does anyone know why I'm getting this notification ? or have any information in regards to this ? 

Update: After Appealing I actually got a reply from Facebook and this was the information they gave me: 

Thanks for your inquiry. To help keep our policies simple while delivering great social networking experiences to users, our automated systems restrict Pages providing poor user experiences. Our systems use a variety of signals to assess user experience, such as user feedback on a Page's communications and on the Page itself.

We've checked out the circumstances of your Page's restriction, and we found that your Page received strong negative feedback from users and their friends. This denotes a poor user experience and amounts to a violation of our Facebook Page Guidelines (https://www.facebook.com/page_guidelines.php), which is why your Page was restricted. Accordingly, we will not be able to restore your Page. Please note that this decision is final and cannot be appealed.
For Pages you'd like to launch in the future, please first make adjustments to ensure you're providing a good user experience and meeting our policies.

Thanks,

The Facebook Pages Team

Wordpress Plugin Add Link to Facebook

In my directory website http://georgiahealthcareprofessionals.com I added the following plugin "Add Link to Facebook" and it works great, it connects to the Facebook API and can post to the wall it also integrates any comments/posts that are made on facebook back to your site, you can download a copy of the plugin from the following website: http://wordpress.org/extend/plugins/add-link-to-facebook/

The two issue that I did find is that when doing a bulk import of data into my directory press website the plugin 

causes the import to fail with a 404 error, I recommend the disabling the plugin prior to any large import of data. 

The only other issue is that sometimes the API transaction fails however you are notified in the admin panel and an clear the error simply by updating the post/comment that was made using the wordpress admin panel

I gave this wordpress plugin 4 STARS