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MTA oddities

Over the weekend I gave the smtpinvite thing that I found on TechTV’s server a try. The idea is that the primary MX will always defer people – it exist solely for adding sending hosts to a whitelist – when the remote MTA then goes to the secondary it will let the mail through.
This works fine for most MTA’s that I looked at during the few hours I had it up. Sendmail however will not contact the secondaries when it gets a defer message it will just keep trying to talk to the primary on each retry! Surely that is wrong, I have not gone to study the RFC’s but it seems very stupid to me. So unfortunately I had to abandon the idea.

Rainy Day

Rainy Days are really unproductive, especially over weekends. It feels like you are being robbed somehow. I took this today out of desperation, and I think I am quite fond of it.

Functional Beauty

I always love seeing the beauty that lies in things that exist purely for a functional reason. I went for a walk in Hyde Park today and came across some ropes that is supposed to keep people away from water that spilled after a pipe burst. The ropes have been there a while and have suffered under the wind and weather. I put up five photos that I took there, click on the image below.