Quote warping

Guys,

When someone replies using web-interface he obtains a quotation inserted to
reply window like that:

Lorem ipsum dolor sit amet, consectetur adipiscing\n
elit.\n
Proin imperdiet, risus vel sagittis ultrices, metus\n
dui tempor quam, eget imperdiet nulla est non elit.\n
Morbi faucibus varius diam, et congue ligula dapibus\n
non. Duis pulvinar rhoncus molestie.

When origin was:

Lorem ipsum dolor sit amet, consectetur adipiscing elit.\n
Proin imperdiet, risus vel sagittis ultrices, metus dui tempor quam, eget
imperdiet nulla est non elit.\n
Morbi faucibus varius diam, et congue ligula dapibus non. Duis pulvinar
rhoncus molestie.

What should I do to have the origin in the reply text field whithout any ">"
symbols and, most of all, warping?

smime.p7s (3.54 KB)