If your a business we always recommend you have a dedicated (or static) IP address as this will alleviate most issues.
You could ask your ISP to do it?
Firstly, you need to determine if you have a dedicated (static) IP address or a dynamic IP (ie: shared & it keeps changing when you reset your router).
Secondly, go here: http://mxtoolbox.com/blacklists.aspx and add your IP address to see if it is blacklisted.
If YES - once done, click on the DETAILS button, scroll to the bottom of page and copy REASON FOR LISTING link into your browser.
If YES - once done, click on the DETAILS button, scroll to the bottom of page and copy REASON FOR LISTING link into your browser.
IMPORTANT: Fix the reason for the listing BEFORE delisting.
Each blacklisting service has their own reasons and ways to de-list so once you get there look around to find the De-list.
Each blacklisting service has their own reasons and ways to de-list so once you get there look around to find the De-list.
