Larry Seltzer of eWeek, whom I have great respect for and usually agree with, wrote this article on dealing with spam using the controversial tactic of blocking all outbound port 25 access.? The logic ...

Before you delve into the process of creating an SMTP server for your small business, consider whether it requires a dedicated mail server for security, or if you can configure your messages to bounce ...

We wish to allow an external manufacturer to remotely access the copiers that it leases to us, so it can obtain monthly meter readings. The company requires either port 110 or port 25. A free tool ...

A port number is a way to identify a specific process to which an internet or other network message is to be forwarded when it arrives at a server. All network-connected devices have standardized ...

Larry Seltzer wrote an interesting article for eWeek, on port 25 blocking, the reasons why it was being advocated, and how it would stop spam. This quoted an excellent paper by Joe St.Sauver, that ...