In need of a Microsoft Postmaster

[Mark Keymer <mark () viviotech net>]

I am in great hopes that a Microsoft Postmaster could get in contact 
with me. This is dealing with a delisting of a banned IP

"blocked using Blocklist 3, mail from IP banned" My client is e-mailing 
a vendor of theirs who's mail goes to "mail.messaging.microsoft.com"

We have submitted a request to delist it but have not heard back from 
anyone for about 2 weeks now. Our client is up in arms and all that.

There has been no know reasons for why the ban would have taken place.  
It is possible this is an old ban from before we had the IP space which 
we got 1-2 years ago. :(

Sincerely,

Mark Keymer
CFO/COO
Vivio Technologies