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I've seen a few plugins (subscribe2, subscribe to comments) that allow people that have commented to receive emails containing follow up comments.

What I want to do is slightly different. I want to post to have a 'Subscribe' button. Clicking this would then allow the user to receive by email subsequent comments to that post. They would not need to post a comment themselves.

Is this possible with a plugin, code or a mix of the two?

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up vote 0 down vote accepted

Subscribe To Comments Reloaded allows subscribing without commenting. It uses a link instead of a button, though.

Screen shot:

enter image description here

It shouldn't be too hard to customize.

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Thats fantastic! Thanks for the reply :) – Chris Jan 6 '13 at 16:09
You're welcome! @toscho, thank you for fixing the image – akTed Jan 6 '13 at 16:18

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