| Price | | | |
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| Delivery past filters | | | |
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| Accepts opt-out lists | | | |
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| Only allows opt-in lists | | | |
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| Advanced database & CRM features | | | |
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| Easy do-it-yourself interface | | | |
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| Campaign strategy & creative help | | | |
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| Handles rich media or forms in email | | | |
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| Dedicated IP address per client | | | |
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| Advanced reporting (beyond opens & clicks) | | | |
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| Highly responsive customer service & help | | | |
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