There seems to be an issue with people who are using Bell as their internet provider. It seems to be blocking certain servers which is causing clients to not be able to access their web sites and Email. They had a similar issue last month where they were blocking 3rd party Email servers. The issue is on Bell's side and will hopefully fix itself shortly. We will update this blog and our Twitter when we know more.
From Bell's Support web site:
"Customers in the following areas may be experiencing service interruptions:
We apologize for any inconvenience."
Update July 15th
Bell seems to be having the same issue it was having last week in regards to blocking third party servers. This is leading to some clients not being able to access their email.