Monthly Archives: January 2012

Total Costs of Ownership

If someone can’t let things go because they did cost much money at some point in time, consider the following:

  • What was the value of this item once you purchased it?
  • What would it costs if you had to buy it today again?
  • Would you spend that money for this item today?
  • Do you still use this item or do you keep it just because it did cost money some time ago?
  • What a re the costs of keeping it?

From all thoughts, I propose the latter is the most important. Keeping things does come with cost (time for organizing, time for tidying up,…). If you are not using something at all and probably not using it anytime in the future while you spend time in carrying it from one place to another, there is no rational reason to keep it. Calculate the costs of doing so, and you will realize that the original investment of purchasing it, was only a minor portion of the total costs of ownership

2011 Spam Statistics

2011 Spam StatisticsAs I recently moved my mail server to a new cloud provider, I used this opportunity to check the mail statistics for 2011. All together I had

64.097 mails processed from which

42.469 where spam mails and

375 included viruses.

All together this makes 66.25% of spam. However, only 0,58% of processed mails included viruses, which is a quite  surprisingly fact. Over the last year I encountered only  two to five spam mails a day in my inbox, and I have not reported any false positive at all. In contrast, I pick up false positives in my GMX junk mailbox on a regular weekly  base. For my personal mail server, I am using SpamAssassin with settings, I improved over two to three years as well as a set of various DNS blacklist.

Quite a part of the regular mails origin from various mailing lists and newsletters which leaves me with about 60 mails a day to process. A number to be definitely improved (i.e. reduced) for 2012.