No, this is not a real Sinatra error :).
This is the personal homepage of Elad Meidar, a web developer and an entrepreneur specializing in Ruby on Rails. I hang around in Israel, and i am currently having the best time of my life over at Fiverr.com
I am a proud member of RailsBridge, Helping new Rails developers get into our world and also contributed a few Patches to the Ruby on Rails core.
i was trying the other day to create some sort of a newsletter. sadly it took me about 2 hours to generate and send 51000 emails (not spam :) ) so i tried to find a way to do it a little faster.
a friend of mine came across the idea of using threads so i tried to override the basics of ActionMailer in order to make the delivery method to user threads.
the change boosted me up to 18-20 mails per second, in other words, 1900% more efficient!
here is the code, just push it in your environment.rb (or lib, whatever), just don’t use it for mean/nasty/microsoft needs :).
You're seeing this error because I think it is funny.