I have a problem with sending mails from my office.
I periodically get a message saying that the "Connection to Microsoft Exchange has been lost" which after a few seconds is followed by a "Connection to Microsoft Exchange has been restored".
If I try to send mails they are stuck on the outbox and are not getting sent because of the above.
The web Interface is also not working well. I get a "12030" error message there frequently.
The problem has the same symptoms as described here:
http://support.microsoft.com/kb/2675986/en-us
but I only have 1 mailbox, and the solution does not work for me.
I've tried on two different PCs and two different Office 365 accounts and we experience the same problem.
I do not know if we are on the same server node, but i will post back when I know.