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How do I check which SMTP client I have installed? And how do I configure it?

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Most email programs, like Thunderbird or Evolution, have a SMTP client build in to send mail, so you can have more than one SMTP client installed and there is no easy way to get a list of all installed clients.

What do you want to do?

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Thanks! I am trying to get a Ruby on Rails send email. I just want to know what settings to give it so that it will start sending. Currently I get no errors from Ruby and it is trying to send, but can't :( so I figured I should look into SMTP – Genadinik May 26 '11 at 20:22
I've never used Ruby on Rails but maybe this helps:… – Florian Diesch May 26 '11 at 20:34

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