We have using dnn form and list module, emails are send to spam folder and mail template like this below

body, table, th, td {font-family: Verdana, Tahoma, Arial, Helvetica; font-size: 11px; font-weight: normal;}

th {font-weight: bold; text-align:left;}

First Name:

test

Last Name:

test

Email:

test@gmail.com

Phone:

54645645

Brief Message:

test

How to change removed css styles on top section and email will strike out text will appear.

How to send email in inbox folder not in spam.

We have configured smtp setting and its working fine.

Please any one explain how to solve this issue ASAP