A lot of you have web servers that double as mail servers to relay out mail from your ColdFusion applications. Even if you have a separate server that handles your mail relay, this post should still be helpful. The more and more that spam proliferates on the Internet, the more antsy ISPs get about blocking mail. There are a litany of reasons an ISP might reject mail from your server. GoDaddy has been one of the most annoying companies to deal with. There are two things I had to fix on my mail server before they would accept mail from my server. Reverse DNS and Helo host name.

I found an interesting little bug in the BlogCFC implementation of ColdFISH today. ColdFISH is a ColdFusion code formatting component that is instantiated once and cached as a singleton in the application scope in BlogCFC. The problem is, ColdFISH looks like it wasn't intended to be used as a singleton. It makes use of the variables scope to store the Java StringBuffer class it uses to gather up your formatted code as well as a number of other variables used to parse the code it is formatting. This means when two or more people hit a BlogCFC entry with larger code samples, race conditions exists.