In my endeavor to customize the line-through text decoration in red and change the text color to black or any other color for an email, I have experimented with various methods. These include wrapping the text in a span and setting its color to red, using strike tags, s tags, and inline CSS.
<span class="strike" style=" color: #444 !important; text-decoration: line-through; text-decoration-color: #ff0000; "><span class="textMsg">strike with different color</span></span>
<br />
<span class="textMsg" style=" color: #444 !important; text-decoration: line-through; text-decoration-color: #ff0000; ">strike with different color</span>
<br />
<span style="color: black;position: relative;"><img src="https://dummyimage.com/100x1/ff0000/fff" style=" position: absolute; top: 50%; transform: translateY(-50%); left: 0; width: 100%; ">strike with different color</span>