Sending mail problem in ASP.NET core MVC with godaddy shared hosting

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C#

MVC

ASP.NET-Core

I am trying to send mail from my ASP.NET Core 2.0 MVC application but mail is sending from only home page not sending from other pages, I am using same method for all page. There is no error in sending the mail. But I am not receiving the mail in my Gmail, but receiving mail from only home page.

What I have tried:

----Home Controller--

[HttpPost]
public async Task<IActionResult> HomeContact(ContactModel contact)
{
    try
    {
        await emailHelper.SendEmail(contact);
        TempData["Message"] = "Email Has Been Sent Successfully.";
    }
    catch (Exception ex)
    {
        Global.SaveError(ex);
        TempData["Message"] = ex.ToString();

    }
    return RedirectToAction("Index");  
}

Note-- this above HomeContact is working if I call it from the home Page but for testing if I call this method from another pages this is not working , this was working only once but now not working.

----home page contact us view code ---

<form name="contactForm" method="post" enctype="multipart/form-data">
   
    <input type="hidden" name="Subject" value="Discuss" />
    <input type="hidden" name="PageLocation" value="Home" />

    <div class="row">
        <div class="col-lg-6 col-md-6 col-sm-6">
            <input type="text" name="Name" placeholder="Your Name *" required />
          
        </div>
        <div class="col-lg-6 col-md-6 col-sm-6">
            <input type="email" name="EmailID" placeholder="Your Mail *" required />
        </div>
        <div class="col-lg-6 col-md-6 col-sm-6">
            <input type="text" name="MobileNo" placeholder="Phone Number *" required />
        </div>
        <div class="col-lg-6 col-md-6 col-sm-6">
            <input type="text" name="Message" placeholder="Subject *" required />
        </div>
    </div>
    <button class="color1_bg tran3s" asp-action="HomeContact"
            style="background:#fff;">
        Submit
    </button>


    @if (ViewBag.Message != null)
    {
        <script> window.alert( '@ViewBag.Message') </script>
    }

</form>

-------mail method--

public async Task SendEmail(ContactModel contact)
{
  
    try
    {


        var dateTime = Global.CurrentDate();

        var formattedTime = dateTime.ToString("h:mm tt", CultureInfo.InvariantCulture);

        var CurrentDateTime = $"{ DateTime.Now.ToString("dd-MM-yyyy")} {formattedTime}";

        MailMessage msg = new MailMessage();

        msg.From = new MailAddress("Student New Enquiry< noreply@domain.com > ");
        msg.To.Add("mymailid@gmail.com");
        msg.Subject = contact.Subject;

        string Mailmsg = "";

        Mailmsg += "This is the Student has a Enquiry for apply course." + Environment.NewLine + Environment.NewLine;
        Mailmsg += $"Date : { CurrentDateTime }" + Environment.NewLine + Environment.NewLine;
        Mailmsg += $"Name : {contact.Name}" + Environment.NewLine + Environment.NewLine;
        Mailmsg += $"Contact No : {contact.MobileNo}" + Environment.NewLine + Environment.NewLine;
        Mailmsg += $"Course Apply : {contact.CourseName}" + Environment.NewLine + Environment.NewLine;
        Mailmsg += $"Message : {contact.Message}" + Environment.NewLine + Environment.NewLine;
        Mailmsg += $"Page Location : {contact.PageLocation}" + Environment.NewLine + Environment.NewLine;

        msg.Body = Mailmsg;

        using (SmtpClient client = new SmtpClient())
        {

            client.EnableSsl = false;
            client.UseDefaultCredentials = true;
            client.Host = "relay-hosting.secureserver.net";
            client.Port = 25;
            await client.SendMailAsync(msg);

        }
    }
    catch (Exception ex)
    {
        throw;
    }

}

Below is my contact us page method i have called this from homeController or contactcontroller this is not wokring .

---contact us ---

[HttpPost]
[Route("Contact")]
public async Task<IActionResult> Contact(ContactModel contact)
{
    try
    {
        contact.Subject = "Enquiry";
        contact.PageLocation = "Contact US";

        await emailHelper.SendEmail(contact);
        TempData["Message"] = "Email Has Been Sent Successfully.";
    }
    catch (Exception ex)
    {
        Global.SaveError(ex);
        TempData["Message"] = ex.ToString();

    }      
    return View("~/Views/Home/Contact.cshtml");
}

--view code of contact us page---

<form name="contactusForm" method="post" enctype="multipart/form-data" id="form_validation">

    <div class="row">
        <div class="col-lg-6 col-md-6 parsley-row">

            <select class="selectmenu" name="CourseName" value="" required>
                <option value="">--Select Course--</option>
                <option value="B.Sc (Nautical Science)">B.Sc (Nautical Science)</option>
                <option value="B.TECH IN PETROLEUM ENGINEERING">B.TECH IN PETROLEUM ENGINEERING</option>
                <option value="B.Tech Marine Engineering">B.Tech Marine Engineering</option>
                <option value="B.Tech Naval Architechture Ship Building Course">B.Tech Naval Architechture Ship Building Course</option>
                <option value="ETO">DNS</option>
                <option value="ETO">ETO</option>
                <option value="GP RATING">GP RATING</option>
                <option value="GRADUATE MARINE ENGINEERING">GRADUATE MARINE ENGINEERING</option>
            </select>

        </div>
        <div class="col-lg-6 col-md-6 parsley-row">
            <input type="text" placeholder="Your Name *" name="Name" data-parsley-pattern="^[a-zA-Z]+$+%" required>

        </div>
        <div class="col-lg-6 col-md-6 parsley-row">
            <input type="email" placeholder="Your Mail *" name="EmailID" data-parsley-trigger="change" required>

        </div>
        <div class="col-lg-6 col-md-6 parsley-row">
            <input type="text" placeholder="Phone Number *" name="MobileNo" maxlength="11" pattern="[0-9]{10,11}" required>
        </div>
        <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12 parsley-row">
            <textarea placeholder="Your Message" name="Message" required></textarea>
        </div>
    </div>

    <input type="hidden" name="Subject" value="Enquiry" />
    <input type="hidden" name="PageLocation" value="Contact US" />

    <button type="submit" value="Contact" asp-controller="Home" asp-action="Contact" class="color1_bg tran3s">
        Submit Now
    </button>

    @if (ViewBag.Message != null)
    {
        <script> window.alert( '@ViewBag.Message') </script>
    }

</form>