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Alex
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Posted: 01 August 2011 at 11:44am | IP Logged Quote Alex
Ii still couldn't get how it connects in the last case. Which settings does it use? Or is it completely random?

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Alex
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vdumas
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Posted: 01 August 2011 at 11:54am | IP Logged Quote vdumas
It connects after many retries sometimes and other times faster.
Here is the code:


        public Imap Connect(string server, int port)
        {
            Global.Pipelining = true;
            MailBee.ImapMail.Imap.LicenseKey = _licenseKey;            
            MailBee.ImapMail.Imap imap = null;
            DateTime start = DateTime.Now;
            Global.AutodetectPortAndSslMode = false;

            if (imap == null)
            {
               imap = new Imap();
               imap.ThrowExceptions = false;
               // configure encryption                    
               imap.SslProtocol = MailBee.Security.SecurityProtocol.Tls1;
               imap.SslMode = MailBee.Security.SslStartupMode.OnConnect;
               imap.Log.Enabled = true;
               imap.Log.Filename = "C:\\Temp\\imap_log.txt";
               imap.Log.Clear();              
            }

            ClearLog("Trying " + server + ":" + port + "...");
            int numberOfRetry = 0;

            while (!imap.Connect(server, port) && numberOfRetry < 30 )
            {
               // sleep and retry
               System.Threading.Thread.Sleep(1000);
               this.Log("Re-Trying " + server + ":" + port + "...");
               imap.ResetState();                              &n bsp; 
               this.Update();
               numberOfRetry++;                        
            }

            if (numberOfRetry >= 30)
            {
               this.Log( DateTime.Now + "- Failed for 30 seconds" );
               return null;
            }

            // connect did not throw exception, then sto.Tls1rying
            this.Log( DateTime.Now + "- Success!" );
            return imap;
        }
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vdumas
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Posted: 03 August 2011 at 7:58am | IP Logged Quote vdumas
It works well when the session ID of the packet is not set (length 0).
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vdumas
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Posted: 03 August 2011 at 8:33am | IP Logged Quote vdumas
I contact the support because this issue has been causing important problems since march and we need to find a solution to turn SSL packets off.

As described here
http://www.afterlogic.com/forum/forum_posts.asp?TID=3410

We set these:
Global.AutodetectPortAndSslMode = false;
imap = new Imap();
imap.SslMode = MailBee.Security.SslStartupMode.OnConnect;
imap.SslProtocol = MailBee.Security.SecurityProtocol.Tls1;
imap.Connect(imapConfig.Host, imapConfig.Port);

This sends randomly packets that are containing a session ID (SSL). The exchange server does not like those and sends a reset on the connection.
It only accepts TLS packets.

Setting the MailBee.Security.SecurityProtocol.Tls1 should be disabling the SSL session ids, at least after the first attempt when a reset was received.


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Alex
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Posted: 03 August 2011 at 8:52am | IP Logged Quote Alex
Try the version for .net 1.1 framework from http://www.afterlogic.com/updates/mailbee_net_1.zip to see if it makes any difference.

.net 2.0+ optimized version uses the .net's standard SslStream class which we have no direct control of while .net 1.1 version can set allowed SSL protocols directly on WinAPI level.

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Alex
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vdumas
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Posted: 03 August 2011 at 10:13am | IP Logged Quote vdumas
Same behavior, maybe we should use your active x?
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Alex
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Posted: 03 August 2011 at 10:54am | IP Logged Quote Alex
Good idea, it's worth trying.

Also, does it behave the same way on different computers? Maybe, the issue is OS dependent or something like that? Is it possible to get external IP for the server to check from our place, for instance?

regards,
Alex
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