Q:

HTML - Outlook clients height issue

See the below code for a HTML email;
<table class="barcode" style="border-collapse:collapse; border:none ! important; background:white; width:auto; margin: auto;">
  <tr style="height: 50px;">
    <!--  This is duplicated -->
    <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
        <table style="border-collapse: collapse"><tr>
            <td height="50" width="4.3" style="visibility:hidden; width:4.3px; height:50px; font-size:4px; color:#FFFFFF; color:transparent; padding: 0">&#9608;</td>
        </tr></table>
    </td>
    <!--  /This is duplicated -->
    </tr>
</table>

The <td> element in between the comments is duplicated multiple times (for barcode reasons).  However, when you get past 100 (appx) <td> elements, Outlook clients seem to ignore the 50px height.  Screenshot below. 

https://jsfiddle.net/uqtzov9u/1/ - Code that generated the above
I have tried removing the gross nested table and replaced it with a div, but still experience the same issue. 
Why are Outlook clients ignoring the 50px height when I get past x number of <td> elements? 

A:

I removed all the inside tables, widths and kept only the outer td's and it works now in Outlook 2016 Version 1802 (Build 9029.2167). 
Now all you need is another set of td's that seperates the barcode lines with white. 

<table class="barcode" style="border-collapse:collapse; border:none ! important; background:white; width:auto; margin: auto;">
 <tbody>
  <tr style="height: 50px;">
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">
   
   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
   <td style="height: 50px; padding:0 0 0 0; margin:0 0 0 0; background:white; border-width:0 0 0 1.6px; border-left-color: black; border-left-style: solid;">

   </td>
  </tr>
 </tbody>
</table>

Recommendation: Dont use borders, use td with pixel width and give it a background color. 
Let me know if this works for you.