Monday, 01 January 2007

I'm in the process of moving my email for the domain to a new mail server, and I've realized - once again - just how complicated spammers have made our lives. Especially from a technical standpoint.

PTR records in DNS and RBL records on services that no one ever heard of and which have no set rules to determine what gets on the list or how to engage them in getting off a list. What a mess. Luckily I am not on any RBL lists (with the exception of one idiotic one that everyone seems to be on, and which I certainly hope no one ever uses). But I have friends and acquaintances who have been in that boat before and it's not fun.

But the biggest pain with moving a mail server has to be DNS propagation and the wrenches people throw into it. Enough time has passed that all locations should be pointing to the new mail server, because the old DNS records have expired. Yet there are a significant number of (large and prominent) email and Internet service providers (including my own) that are apparently caching longer than the record provides. Fun. That means I am checking two mail servers (and that's a bit of a challenge, let me tell you), and that I cannot send email to pretty much anyone until the planets align and the name server records line up.

Even my web site still has a few bots and spiders and other systems munging through it. I wonder if they'll notice when I turn it off?

One other thing I have observed. The spammers also don't respect caching of DNS records, but in the opposite manner. Instead of caching a record for too long, they completely ignore the cache settings to make sure they can flood your new mail server with as much crap as possible, as quickly as possible.

Ah, gotta love it!

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Tech | Things that Suck
Monday, 01 January 2007 10:47:54 (Pacific Standard Time, UTC-08:00)
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