Suitable Plugin for Online Shop

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Hi all, I am creating an online store with WordPress and I use a free plug-in , Marketpress lite plugin, to make “the shopping chart” .

but theres an obstacles, the notification that are sent via email to buyer who already order , are read as a spam by email. and the value of its currency little bit not suitable for my currency.

is there any suggestion what more suitable plugin for use ? if the plugin is free, there is any recommendation what good plugin ? and also , if there must pay , what plugin recommendation for my shopping chart ?

Thanks for the attention 🙂

Heres my link web : http://marefy.com/marefyproduct/