HTML电子邮件没有间距

Question

我目前的情况： http://i.gyazo.com/b3111f32a78e86504d8a555f0adad3de.png

我想做什么： http://i.gyazo.com/2d6c75649401e1b5dc9825d6e427791f.png

忽略边框/笔划只是为了让我清楚地看到我在看什么。

我想要做的是使每个表格单元格行和列之间没有任何空间。 我该怎么做呢？ 目前的代码：

<table border="1">
    <tr>
        <td >
            <img src="http://i.imgur.com/vyJu43v.png">
        </td>
        <td >
            <img src="http://i.imgur.com/vSAgEXE.png">
        </td>
        <td >
            <img src="http://i.imgur.com/Ih5jtiC.png">
        </td>
    </tr>
    <tr>
        <td rowspan="4">
        <img src="http://i.imgur.com/9B9Wcit.png">
        </td>
        <td>
        The new Insight Snapshot newsletter from Opinion Matters is packed full of research<br />
        and communication ideas to inform your next project. Featuring tips for data<br />
        storytelling, ways to interact with your target audience through online quizzes and<br />
        case study examples of recent international survey campaigns.<br />
        </td>
        <td rowspan="4">
            <img src="http://i.imgur.com/lNwkYpL.png">
        </td>

    </tr>
    <tr>
        <td>
        <img src="i.imgur.com/eCje9hy.png">
        </td>
    </tr>
    <tr>
        <td>
        If you would like to speak to a member of the team regarding any of the features in the <br/>newsletter please call 0207 251 9960 or email newsletter@opinionmatters.com<br/>
        </td>
    </tr>
    <tr>
        <td>
        <img src="i.imgur.com/mC6Pytj.png">
        </td>
    </tr>
</table>