In order to remove the blue links in iOS devices, you need to add a bit of code to the HTML of your email. If you are unable to do so yourself, send an email to support@webpower.nl and our support team will be happy to help.
If you are able to do this yourself, add the following bit of code:
a[x-apple-data-detectors] {
color: inherit !important;
text-decoration: none !important;
font-size: inherit !important;
font-family: inherit !important;
font-weight: inherit !important;
line-height: inherit !important;
}