Status update on providers (#87)

* Status update on providers

* Update 1.prerequisites.md

Co-authored-by: Will Power <[email protected]>

---------

Co-authored-by: Will Power <[email protected]>

Author: dvdnhm

content/2.getting-started/1.prerequisites.md

@@ -15,7 +15,7 @@ We **strongly** recommend installing Postal on its own dedicated server (i.e. a
 * At least 2 CPU cores
 * An appropriate amount of disk space (at least 25GB) for your use case
 
-Most people install Postal on virtual servers. There are lots of providers to choose from including [Digital Ocean](https://m.do.co/c/17696597a9ed) and [Linode](https://www.linode.com).
+Most people install Postal on virtual servers. There are lots of providers to choose from including [Digital Ocean](https://m.do.co/c/17696597a9ed) and [Linode](https://www.linode.com) however you may find that the IP address given to you is already on blocklists so it may take additional testing to find a provider that is right for you.
 
 One thing to be aware of is you'll need to ensure that your provider does not block port 25 outbound. This is quite common and is used to prevent abuse from spammers.