Seeking Assistance with Microsoft IP Blocklist removal of large IP space (AS53755 / IOFlood)

[John Boucher via NANOG <nanog () lists nanog org>]

Hello,

I’m reaching out on behalf of IOFlood (AS53755) and we are currently
experiencing an issue where Microsoft appears to be blocking our entire IP
space from delivering mail to Hotmail, Outlook, and MSN addresses. This has
become a significant inconvenience and hassle for all of our customers who
rely on email delivery to Microsoft domains.

Unfortunately, Microsoft’s standard IP removal form is not a feasible
solution given the size of our overall IP allocations. They only allow a
/24 per request and while we have been working using this method, it would
be near impossible to cover all of our IP space in any reasonable amount of
time.

We’re looking for anyone who may be able to assist directly, or who can
point us to a contact or escalation path within Microsoft.

If you have any guidance or contacts to share, I’d greatly appreciate it.

Best regards,
-- 
John Boucher
Senior Technician - Input Output Flood, LLC
*We Love Servers*

web: www.ioflood.com
email: support () ioflood com
twitter: @ioflood
_______________________________________________
NANOG mailing list 
https://lists.nanog.org/archives/list/nanog () lists nanog org/message/2KDELKI7JVSUU2H7OHJP75S6H5TALJUH/