Wrong html sent in email

Hi and thank you for this wonderful plugin. I have one issue and I would like to ask you for help.
The plugin isn’t sending the exact same HTML code that I have defined as an email template, it’s slightly different. The snippet from email template:

<tr>
    <td><a href="https://www.instagram.com/masnetiedup/" target="_blank">Instagram</a></td>
    <td><a href="https://www.facebook.com/masnetiedup/" target="_blank">Facebook</a></td>
    <td><a href="https://www.etsy.com/shop/TiedUpBowtiesStore" target="_blank">Etsy</a></td>
  </tr>

And what I get in the email is:

<tr>
<td>Instagram
    </td>
<td style="text-align:center;border-collapse:collapse;padding:12px"><a href="https://www.facebook.com/masnetiedup/" style="color:#de6a26;font-weight:normal;text-align:center;text-decoration:none" target="_blank" data-saferedirecturl="https://www.google.com/url?q=https://www.facebook.com/masnetiedup/&source=gmail&ust=1572109407124000&usg=AFQjCNFLhRuJEU3Gu0JOQCY8qxJuqcrOig">Facebook</a></td>
    <td style="text-align:center;border-collapse:collapse;padding:12px"><a href="https://www.etsy.com/shop/TiedUpBowtiesStore" style="color:#de6a26;font-weight:normal;text-align:center;text-decoration:none" target="_blank" data-saferedirecturl="https://www.google.com/url?q=https://www.etsy.com/shop/TiedUpBowtiesStore&source=gmail&ust=1572109407124000&usg=AFQjCNF3BEqfBWdQpA8iAwUDurOMEV_6PQ">Etsy</a></td>
  
  </tr>

So, just pay attention to “Instagram” link, the rest is ok. That part of the code that’s missing is appearing somewhere above in some random tag that doesn’t even exist in my template.
Do you possibly know what can cause this?

Thanks!