Configuration Error in Additional Headers Field

Hello, does anyone have a solution for a syntax error in the mail tab? I have combed over the code and I’m not seeing an issue but I keep receiving the same error message. Under the mail tab I have the following:

To: Michael Shaw <[email protected]>
From: [your-name] <[email protected]>
Subject: MStaff Solutions Proposal Request Form: [your-subject]
Additional Headers: Reply-To: [your-email]

Under this field is the message “this field has syntax errors”

Here is the code for the form:

<fieldset>
<div><label>Does your government agency currently have a contract with Muscogee Staffing Solutions LLC?</label></div>
[radio Contract default:1 "Yes" "No" "I don't know"]<br>
<div><label><strong>Agency<strong></label></div>
<div><label>Agency Name</label>[text* your-agency] </div>
<div><label>Address</label>[text* your-address] </div>
<div><label>City<span></span></label>[text* your-city] </div>
<div><label>State/Province<span></span></label>[text* your-state] </div>
<div><label>Zip/Postal Code<span></span></label>[text* your-zip] </div>
<div><label>Phone<span></span></label>[text* your-phone] </div>
<div><label>Website<span></span></label>[text* your-website] </div>
<div><label><strong>Is this contract a set-aside?<strong></label></div>
[checkbox* checkbox-983 use_label_element "Yes " "No"]<br>
<div><label><strong>What type of set-aside is this?<strong></label></div>
[select menu-934 include_blank "Alaskan Native Corporation" "8(a)" "Minority Institution " "Minority Business Enterprise" "Historic Black College or University " "Self-Certified Small Business" "Small Disadvantaged Business" "Certified Small Disadvantaged Business" "HUBZone Small Business" "Woman-owned Small Business" "Veteran-owned Small Business" "Service Disabled Veteran-owned Small Business"]<br>
<div><label><strong>Contact<strong></label></div>
<div><label>Name*</label>[text* your-address] </div>
<div><label>Title*</label>[text* your-address]</div>
<div><label>Phone Number*</label>[text* your-address] </div>
<div><label>Fax Number</label>[text your-address] </div>
<div><label>Email Address*</label>[text* your-address] </div>
<div><label><strong>Opportunity Details</strong></label></div>
[radio radio-286 use_label_element default:1 "Current Requirement" "Future Opportunity"]
<div><label>Customer</label>[text* your-name] </div>
<div><label>Solicitation Number</label>[text* your-solicitation number] </div>
<div><label>RFP Due Date</label></div>
<div>[date RFPDueDate "MM/DD/YYYY"]</div><br>
<div><label>NAICS Code</label>[text* your-code] </div>
<div><label>How did you hear about us?</label></div>
<div>[select menu-507 include_blank "Magazine" "Google" "Customer" "Industry Partner" "Tradeshow" "CCR" "Other..."]</div><br>
<div><label>If other, please describe...</label>[text* your-description] </div>
<div><label>Briefly describe this opportunity</label>[text* your-opportunity] </div><br>
<div><label>Attach Statement of Work</label></div>
<div>[file StatementofWork limit:1MB filetypes:.doc|.docx|.txt|.pdf|.jpg|.]</div><br><br>
<div>[recaptcha]</div>
<fieldset>
[submit "Send"]
<div class="clear"></div>

I would appreciate any insight for this newbie!