On 2013-02-20, at 9:32 AM, Balint Erdi <balint.e...@gmail.com> wrote:

> In the languages I come from (e.g Ruby) I'd use a library that handles the 
> queueing and consumption of tasks. Is this how you'd do it in Clojure or it's 
> one of these cases where Clojure itself suffices where other languages are 
> lacking?

This is how I've done it.

I know this is largely a theoretical question about side-effects and STM in 
Clojure, but… In the end, there's always the chance that you'll send duplicate 
emails, all you can do is try to minimize that. There's also the chance that 
you never actually successfully send the email, if for no other reason than 
there's no way to ensure the email is received or to know if it was received. 
Not to mention spam filters. Using specialist email services is something to 
seriously consider, it'll make your job much easier, all you have to do is make 
sure the email request is received by the service -- there's a protocol for 
that. A decent service will do much better than you can do at making sure the 
email is sent.

Cheers,
Bob

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