diff --git a/src/Libraries/Nop.Services/Messages/SmtpBuilder.cs b/src/Libraries/Nop.Services/Messages/SmtpBuilder.cs
index 1c28f26ed5e..0383002ae1e 100644
--- a/src/Libraries/Nop.Services/Messages/SmtpBuilder.cs
+++ b/src/Libraries/Nop.Services/Messages/SmtpBuilder.cs
@@ -59,7 +59,7 @@ public virtual async Task<SmtpClient> BuildAsync(EmailAccount emailAccount = nul
                 await client.ConnectAsync(
                     emailAccount.Host,
                     emailAccount.Port,
-                    emailAccount.EnableSsl ? SecureSocketOptions.SslOnConnect : SecureSocketOptions.StartTlsWhenAvailable);
+                    emailAccount.EnableSsl ? SecureSocketOptions.SslOnConnect : SecureSocketOptions.None);
 
                 if (emailAccount.UseDefaultCredentials)
                 {
@@ -95,4 +95,4 @@ public virtual bool ValidateServerCertificate(object sender, X509Certificate cer
 
         #endregion
     }
-}
\ No newline at end of file
+}