diff --git a/src/Senders/FluentEmail.MailKit/MailKitSender.cs b/src/Senders/FluentEmail.MailKit/MailKitSender.cs
index 8a5d1413..c0b8a3f7 100644
--- a/src/Senders/FluentEmail.MailKit/MailKitSender.cs
+++ b/src/Senders/FluentEmail.MailKit/MailKitSender.cs
@@ -5,6 +5,7 @@
 using MimeKit;
 using System;
 using System.IO;
+using System.Net.Security;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
@@ -54,6 +55,12 @@ public SendResponse Send(IFluentEmail email, CancellationToken? token = null)
 
                 using (var client = new SmtpClient())
                 {
+                    client.CheckCertificateRevocation = _smtpClientOptions.CheckCertificateRevocation;
+                    if(_smtpClientOptions.ServerCertificateValidationCallback != null)
+                    {
+                        client.ServerCertificateValidationCallback = _smtpClientOptions.ServerCertificateValidationCallback;
+                    }
+
                     if (_smtpClientOptions.SocketOptions.HasValue)
                     {
                         client.Connect(
@@ -116,6 +123,12 @@ public async Task<SendResponse> SendAsync(IFluentEmail email, CancellationToken?
 
                 using (var client = new SmtpClient())
                 {
+                    client.CheckCertificateRevocation = _smtpClientOptions.CheckCertificateRevocation;
+                    if (_smtpClientOptions.ServerCertificateValidationCallback != null)
+                    {
+                        client.ServerCertificateValidationCallback = _smtpClientOptions.ServerCertificateValidationCallback;
+                    }
+
                     if (_smtpClientOptions.SocketOptions.HasValue)
                     {
                         await client.ConnectAsync(
diff --git a/src/Senders/FluentEmail.MailKit/SmtpClientOptions.cs b/src/Senders/FluentEmail.MailKit/SmtpClientOptions.cs
index fa21953a..05c783a5 100644
--- a/src/Senders/FluentEmail.MailKit/SmtpClientOptions.cs
+++ b/src/Senders/FluentEmail.MailKit/SmtpClientOptions.cs
@@ -1,4 +1,5 @@
 using MailKit.Security;
+using System.Net.Security;
 
 namespace FluentEmail.MailKitSmtp
 {
@@ -14,5 +15,7 @@ public class SmtpClientOptions
         public bool UsePickupDirectory { get; set; } = false;
         public string MailPickupDirectory { get; set; } = string.Empty;
         public SecureSocketOptions? SocketOptions { get; set; }
+        public bool CheckCertificateRevocation { get; set; } = true;
+        public RemoteCertificateValidationCallback ServerCertificateValidationCallback { get; set; }
     }
 }