In Tuesday’s Birds of a Feather (BOF) session on Fighting Spam with Exchange Server 2007, someone from the audience wanted to know if an external…
InfoWorld columnist Roger Grimes gripes about Real-Time Block Lists (aka Real-Time Blackhole Lists, DNSBLs or DNS-based Block Lists. The Exchange Server 2007 term for RBLs…
I wrote about logging SMTP protocol activity in Exchange Server 2003 in what is one of the most popular posts on Exchangepedia. Starting with Exchange…
RFCs 2821 and 1869 specify the format of HELO/EHLO commands issued by a SMTP client to initiate a SMTP session. RFC 2821 on HELO/EHLO command:…
Exchange 2007 includes a number of anti-spam agents to filter spam. The anti-spam agents log their actions in (anti-spam) agent logs. The default agent log…
This is one of the more frequently asked questions in different forums and still a major annoyance – how do I send as an alternate…
In Exchange Server Transport error: 452 4.3.1 Insufficient system resources we learned how the Back Pressure (Previous versions: Exchange 2010 | Exchange 2007) feature monitors…
In my hotel room in Orlando, getting ready for an Exchange 2007 transport presentation tomorrow morning at TechMentor. When trying to telnet to the SMTP…
If you’re planning to deploy the Edge Transport server role in a perimeter network (aka “DMZ”), here are the ports you’ll need to open: Inbound:From…
It’s probably a little late to make another New Year’s resolution, but I’ll try to convince you to make one nevertheless. By default, when an…