One of the infamous trivial bugs in C code is accidentally writing' = ' instead of ' == ' in conditional expressions; you get assignmentinstead of equality checking. One common piece of advice for avoidingthis is to reverse the order of the check, putting the constant first.This way, if you accidentally write ' NULL = foo ' instead of the == version, you'll get a compile time error.

I can't stand to write this version, because it looks wrong to me.

Once again, I'm leading with Hotmail's stats to highlight their spam problem :

• three email messages accepted.
• 320 messages refused because they came from non-Hotmailemail addresses.
• 22 messages refused because their sender addresses had already hitour spamtraps.
• 21 messages refused due to their originating IP address (17 in theSBL, two in the CBL, one in the XBL, one because it's fromGilat-Satcom).

Gilat-Satcom is a serious problem here; it

Here's how to give a system administrator a heart attack: the defaultSolaris 9 sendmail configuration apparently allows other machines thatyour Solaris machine thinks are in your local domain to relay throughyou. I say 'apparently' because there's nothing in the sendmail.mc aboutthis, and nothing clear in the generated /etc/mail/sendmail.cf either.

In other fun discoveries, the default sendmail configuration is alsoset up to relay all your mail through a machine called 'mailhost' inyour domain