I saw already this answer. And it helped me to make unique mail. It's great. But how to format some text using HTML? For example to work with tags
<b> <i> <font color="red"> <img src="">
I wrote
spintf("<a href="http://site.com/some-page">Text</a>");
And on my mail I got letter with <a href="http://site.com/some-page">Text</a>
instead of this Text.
It seems that WordPress mailer cut HTML, cause I tried printf and echo. Or may be I just do something wrong?