More than one copy in separate geographic locations is important but media diversity also is. Suppose you buy 3 500Gb HDs from the same manufacturer just to discover they have the same defect. There is no way to have a catastrophe proof backup without putting a great deal of work in it. Disciplin, automation, location diversity, backup media renewal, media diversity, everything is important.
Yes, it does work. I started using SPF and almost immediately stopped receiving spam backscatter. Besides that, I activated SPF check in my SMTP server and since then, we drop a lot of forged mail headers too. Its ridiculous easy to implement, consumes nothing more than a DNS record and can be fine tuned. Besides that, every single big mailer is already using it.
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I would change that title to "Game Theory mathematician dies..." In honor of his accomplishments. He was not famous because of the movie.
Are you shure you were not in the control group?
More than one copy in separate geographic locations is important but media diversity also is. Suppose you buy 3 500Gb HDs from the same manufacturer just to discover they have the same defect. There is no way to have a catastrophe proof backup without putting a great deal of work in it. Disciplin, automation, location diversity, backup media renewal, media diversity, everything is important.
Yes, it does work. I started using SPF and almost immediately stopped receiving spam backscatter. Besides that, I activated SPF check in my SMTP server and since then, we drop a lot of forged mail headers too. Its ridiculous easy to implement, consumes nothing more than a DNS record and can be fine tuned. Besides that, every single big mailer is already using it.