Tuesday, 30 March 2010

Update Those Inbound SMTP IP Subnet Restrictions If Using ExchangeDefender

Vlad has brought new data centre online to accommodate the growth of his ExchangeDefender and other online businesses.

As a result, for those of us that use ExchangeDefender (we use them exclusively for e-mail sanitation and continuity), we needed to update our SMTP inbound filters to allow for the new servers that have come online.

Our SBS 2003 R2 Premium configuration in ISA 2004 SP3:


The Deployment Guide has the current IP subnet listed here:

OWN’s Network Operations blog: OWN Network Operations.

The original blog NOC post: ExchangeDefender Grows Again.

Philip Elder
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book

*Our original iMac was stolen (previous blog post). We now have a new MacBook Pro courtesy of Vlad Mazek, owner of OWN.

Windows Live Writer

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