@@ -209,7 +209,7 @@ private void SendEmail(string mailTo, string mailCc, string mailBcc, string subj
             //set email body
             mimeMessage.Body = body;
 
-            using (var client = _MailKitProvider.Client)
+            using (var client = _MailKitProvider.SmtpClient)
             {
                 client.Send(mimeMessage);
             }
 
@@ -1,3 +1,5 @@
+using MailKit.Net.Imap;
+using MailKit.Net.Pop3;
 using MailKit.Net.Smtp;
 using NETCore.MailKit.Infrastructure.Internal;
 using System;
@@ -14,6 +16,16 @@ public interface IMailKitProvider
         /// <summary>
         /// smtp client
         /// </summary>
-        SmtpClient Client { get; }
+        SmtpClient SmtpClient { get; }
+
+        /// <summary>
+        /// pop3 client
+        /// </summary>
+        Pop3Client Pop3Client { get; }
+
+        /// <summary>
+        /// imap client
+        /// </summary>
+        ImapClient ImapClient { get; }
     }
 }
@@ -4,6 +4,8 @@
 using System.Text;
 using MailKit.Net.Smtp;
 using MailKit.Security;
+using MailKit.Net.Pop3;
+using MailKit.Net.Imap;
 
 namespace NETCore.MailKit
 {
@@ -16,14 +18,15 @@ public MailKitProvider(MailKitOptions mailKitOptions)
             Options = mailKitOptions;
         }
 
-        public SmtpClient Client
+        #region Smtp
+
+        public SmtpClient SmtpClient
         {
             get
             {
                 return lazySmtpClient().Value;
             }
         }
-
         private Lazy<SmtpClient> lazySmtpClient()
         {
             return new Lazy<SmtpClient>(() =>
@@ -35,6 +38,8 @@ private Lazy<SmtpClient> lazySmtpClient()
         private SmtpClient InitSmtpClient()
         {
             var client = new SmtpClient();
+
+            client.ServerCertificateValidationCallback = (s, c, h, e) => true;
             if (!Options.SSL)
             {
                 client.Connect(Options.Server, Options.Port, SecureSocketOptions.None);
@@ -52,5 +57,74 @@ private SmtpClient InitSmtpClient()
 
             return client;
         }
+
+        #endregion
+
+        #region Pop3
+        public Pop3Client Pop3Client
+        {
+            get
+            {
+                return lazyPop3Client().Value;
+            }
+        }
+        private Lazy<Pop3Client> lazyPop3Client()
+        {
+            return new Lazy<Pop3Client>(() =>
+            {
+                return InitPop3Client();
+            });
+        }
+
+        private Pop3Client InitPop3Client()
+        {
+            var client = new Pop3Client();
+
+            client.ServerCertificateValidationCallback = (s, c, h, e) => true;
+            client.Connect(Options.Server, Options.Port, Options.SSL);
+
+            // Note: since we don't have an OAuth2 token, disable
+            // the XOAUTH2 authentication mechanism.
+            client.AuthenticationMechanisms.Remove("XOAUTH2");
+
+            // user login pop3 server
+            client.Authenticate(Options.Account, Options.Password);
+            return client;
+        }
+
+        #endregion
+
+        #region Imap
+        public ImapClient ImapClient
+        {
+            get
+            {
+                return lazyImapClient().Value;
+            }
+        }
+        private Lazy<ImapClient> lazyImapClient()
+        {
+            return new Lazy<ImapClient>(() =>
+            {
+                return InitImapClient();
+            });
+        }
+
+        private ImapClient InitImapClient()
+        {
+            var client = new ImapClient();
+
+            client.Connect(Options.Server, Options.Port, Options.SSL);
+
+            // Note: since we don't have an OAuth2 token, disable
+            // the XOAUTH2 authentication mechanism.
+            client.AuthenticationMechanisms.Remove("XOAUTH2");
+            // user login imap server
+            client.Authenticate(Options.Account, Options.Password);
+
+            return client;
+        }
+        #endregion
+
     }
 }
Original file line number	Diff line number	Diff line change
`@@ -209,7 +209,7 @@ private void SendEmail(string mailTo, string mailCc, string mailBcc, string subj`
`209`	`209`	`//set email body`
`210`	`210`	`mimeMessage.Body = body;`
`211`	`211`
`212`		`- using (var client = _MailKitProvider.Client)`
	`212`	`+ using (var client = _MailKitProvider.SmtpClient)`
`213`	`213`	`{`
`214`	`214`	`client.Send(mimeMessage);`
`215`	`215`	`}`