Issue in editing sample content by changing color and font in GrapesJS editor

if I am copying content from outlook and directly pasting into GrapesJS editor. it's adding some outlook specific tags (Junk Tags Like : MsoNormal, </o:p> , etc ) into the content, because of these junk tags I am facing difficulty to edit the content what ever i saved.
Example : its adding these many things for this content
Hi Arjun,
please find below are the things which you need to confirm on Sunday.

Thanks.

"<td class="c3065" style="box-sizing: border-box; font-size: 11.0pt; font-family: Arial,sans-serif; color: #434449;">
                        <p style="box-sizing: border-box;">
                        </p>
                        <p class="MsoNormal" style="box-sizing: border-box;">
                          <span class="c4099" style="box-sizing: border-box; font-size: 11.0pt; font-family: 'Calibri',sans-serif;">Hi
                            Arjun,<o:p style="box-sizing: border-box;">
                            </o:p></span>
                        </p>
                        <p class="MsoNormal" style="box-sizing: border-box;">
                          <span class="c4141" style="box-sizing: border-box; font-size: 11.0pt; font-family: 'Calibri',sans-serif;"> </span>
                        </p>
                        <p class="MsoNormal" style="box-sizing: border-box;">
                          <span class="c4165" style="box-sizing: border-box; font-size: 11.0pt; font-family: 'Calibri',sans-serif;">please
                            find below are the things which you need to confirm on Sunday.<o:p style="box-sizing: border-box;">
                            </o:p></span>
                        </p>
                        <p class="MsoNormal" style="box-sizing: border-box;">
                          <span class="c4207" style="box-sizing: border-box; font-size: 11.0pt; font-family: 'Calibri',sans-serif;"> </span>
                        </p>
                        <p class="MsoNormal" style="box-sizing: border-box;">
                          <span class="c4231" style="box-sizing: border-box; font-size: 11.0pt; font-family: 'Calibri',sans-serif;">Thanks.<o:p style="box-sizing: border-box;">
                            </o:p></span>
                        </p>
                        <p style="box-sizing: border-box;">
                        </p>
                      </td>"

2) it is not reflecting the colors for the content whatever we are saving.

3) it is adding some extra div tags while entering the enter.