We have developed a newsletter system which is part our CMS and is used on our websites. It is developed in PHP with smarty i think.
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We would like some further updates to this including the following;
* we would like to make it send emails in batches of 14
* inbox delivery management - we would like to record deliver success / fail / opened / clicked stats for each newsletter
* Reporting - we would to know what parts of the newsletters subscribers clicked on. i.e hotspots
* subscriber list cleaning - auto removal of duplications
Plus anything else you think you could add to enhance this