Sorry, I miss that you are linking your whole message. This is not the usual practice, it is best to give the link text visibly in the message, AND also use it to link to it.
You have been unsuccessful in setting CELLPADDING because in your css you have this:
td, th {
padding: 0;
}
However changing this in your CSS will impact ALL tables.
A better solution is to add a class to your table, and use this to target the css for this table, so your “table” line would become:
<table class="meetings">
Then in your custom css you would have:
table.meetings {
border: 1px;
}
.meetings th, .meetings td {
padding: 15px;
width: 100%;
}