Message w attachment stuck in outbox after actually sent

Very new to Emclient and I am finding that messages with an attachment are getting stuck in the Outbox and appearing to have not been sent when in fact they have. Originally thought it was related to large file size but Gary sorted me on that front.
Using Gmail and I can see the messages by checking Gmail directly.
It seems that this issue has been flagged before, (Feb '16)
but am using latest model (8.0.3385 (83a873c))
Is there a fix? Thanks

domingo 01 noviembre 2020 :: 0942hrs (UTC +01:00)

Hi @geobos

I’ve seen your previous problem and agree with @gary.
However, as you apparently still have an issue:
Is the file you are sending as an attachment compressed?
What is the specification (processor, Ram, etc) of your system?
What is your connection speed?
What anti-virus program are you using?

Files not compressed. Tested by sending to another account in same system with several files - MP4 and PDF - small PDF no problem; 9Mb an issue.
Arrives at recipient OK but does not leave outbox and ‘Attempt to connect failed’ message appears!
System: AMD Ryzen 7 3700U, 12GB RAM, 512GB PCIe NVMe SSD
Connection: Ping 5ms, DL 44Mbps, UL 36Mbps
anti-virus: AVG Internet Security Ver: 20.8.3147

Looks like I’ll have to try another client.

Same problem here. A short video, large MS Word, document, etc. My Outbox shows it as not having been sent, but the intended recipient gets several copies.

Now finding some disappear from outbox, not in sent folder on PC but in sent folder in gmail.

Have about had it with emclient.

In eM Client, go to Menu > Operations and look for SMTP errors in the Log tab.

Here 'tis after attempting send from ‘George’ to ‘Joy’

7:05:44 PM GEORGE SMTP Connecting: To GEORGE
7:05:45 PM GEORGE Google Contacts Synchronizing folder ‘/Contacts’
7:05:46 PM GEORGE SMTP Connected: To GEORGE
7:05:46 PM GEORGE SMTP Sending messages
7:05:49 PM GEORGE SMTP Disconnected: From GEORGE
7:05:49 PM GEORGE SMTP Disconnected: Done
7:06:26 PM GEORGE POP3 Connecting: To GEORGE
7:06:26 PM GEORGE Google Contacts Synchronizing folder list
7:06:26 PM JOY POP3 Connecting: To JOY
7:06:26 PM JOY Google Contacts Synchronizing folder list
7:06:27 PM JOY Google Contacts Synchronizing folder ‘/Contacts’
7:06:27 PM GEORGE Google Contacts Synchronizing folder ‘/Contacts’
7:06:28 PM JOY POP3 Connected: To JOY
7:06:28 PM JOY POP3 Listing messages: From JOY
7:06:29 PM JOY POP3 Disconnected: From JOY
7:06:29 PM JOY POP3 Disconnected: Done
7:06:29 PM GEORGE POP3 Connected: To GEORGE
7:06:29 PM GEORGE POP3 Listing messages: From GEORGE
7:06:30 PM GEORGE POP3 Disconnected: From GEORGE
7:06:30 PM GEORGE POP3 Disconnected: Done
7:08:42 PM GEORGE SMTP Connecting: To GEORGE
7:08:44 PM GEORGE SMTP Connected: To GEORGE
7:08:44 PM GEORGE SMTP Sending messages
7:09:30 PM GEORGE [SMTP] MailClient.Accounts.SocketException: Sending messages failed due to the following reason:
“Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond…”
at MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Smtp.SmtpAccount.<>c__DisplayClass3_0.b__0()
at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline)
at MailClient.Protocols.Smtp.SmtpAccount.SendAsync(IEnumerable1 items, Action1 sentItem, Action1 completed, CancellationToken cancellationToken) at MailClient.Accounts.BindingAccountBase.SendInternal() at MailClient.Accounts.BindingAccountBase.Send() at MailClient.UI.Forms.formSendMail.<>c__DisplayClass418_4.<Send>b__6(CancellationToken cancellationToken) at MailClient.UI.LongOperationService.<>c__DisplayClass7_0.<MailClient.ILongOperationService.InitOperation>b__0(CancellationToken ct) at MailClient.UI.LongOperationService.<>c__DisplayClass13_01.<b__0>d.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at MailClient.UI.LongOperationService.<>c__DisplayClass13_01.<InitOperation>b__0() at System.Threading.Tasks.Task1.InnerInvoke()
at System.Threading.Tasks.Task.<>c.<.cctor>b__274_0(Object obj)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteEntryUnsafe(Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteFromThreadPool(Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()


Returning to EmClient I now find the message has moved correctly.

So send a second message:
Full log reads:
7:05:44 PM GEORGE SMTP Connecting: To GEORGE
7:05:45 PM GEORGE Google Contacts Synchronizing folder ‘/Contacts’
7:05:46 PM GEORGE SMTP Connected: To GEORGE
7:05:46 PM GEORGE SMTP Sending messages
7:05:49 PM GEORGE SMTP Disconnected: From GEORGE
7:05:49 PM GEORGE SMTP Disconnected: Done
7:06:26 PM GEORGE POP3 Connecting: To GEORGE
7:06:26 PM GEORGE Google Contacts Synchronizing folder list
7:06:26 PM JOY POP3 Connecting: To JOY
7:06:26 PM JOY Google Contacts Synchronizing folder list
7:06:27 PM JOY Google Contacts Synchronizing folder ‘/Contacts’
7:06:27 PM GEORGE Google Contacts Synchronizing folder ‘/Contacts’
7:06:28 PM JOY POP3 Connected: To JOY
7:06:28 PM JOY POP3 Listing messages: From JOY
7:06:29 PM JOY POP3 Disconnected: From JOY
7:06:29 PM JOY POP3 Disconnected: Done
7:06:29 PM GEORGE POP3 Connected: To GEORGE
7:06:29 PM GEORGE POP3 Listing messages: From GEORGE
7:06:30 PM GEORGE POP3 Disconnected: From GEORGE
7:06:30 PM GEORGE POP3 Disconnected: Done
7:08:42 PM GEORGE SMTP Connecting: To GEORGE
7:08:44 PM GEORGE SMTP Connected: To GEORGE
7:08:44 PM GEORGE SMTP Sending messages
7:09:30 PM GEORGE [SMTP] MailClient.Accounts.SocketException: Sending messages failed due to the following reason:
“Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond…”
at MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Smtp.SmtpAccount.<>c__DisplayClass3_0.b__0()
at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline)
at MailClient.Protocols.Smtp.SmtpAccount.SendAsync(IEnumerable1 items, Action1 sentItem, Action1 completed, CancellationToken cancellationToken) at MailClient.Accounts.BindingAccountBase.SendInternal() at MailClient.Accounts.BindingAccountBase.Send() at MailClient.UI.Forms.formSendMail.<>c__DisplayClass418_4.<Send>b__6(CancellationToken cancellationToken) at MailClient.UI.LongOperationService.<>c__DisplayClass7_0.<MailClient.ILongOperationService.InitOperation>b__0(CancellationToken ct) at MailClient.UI.LongOperationService.<>c__DisplayClass13_01.<b__0>d.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at MailClient.UI.LongOperationService.<>c__DisplayClass13_01.<InitOperation>b__0() at System.Threading.Tasks.Task1.InnerInvoke()
at System.Threading.Tasks.Task.<>c.<.cctor>b__274_0(Object obj)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteEntryUnsafe(Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteFromThreadPool(Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
7:11:26 PM GEORGE SMTP Connecting: To GEORGE
7:11:26 PM GEORGE POP3 Connecting: To GEORGE
7:11:26 PM GEORGE Google Contacts Synchronizing folder list
7:11:26 PM JOY POP3 Connecting: To JOY
7:11:26 PM JOY Google Contacts Synchronizing folder list
7:11:27 PM JOY Google Contacts Synchronizing folder ‘/Contacts’
7:11:27 PM GEORGE Google Contacts Synchronizing folder ‘/Contacts’
7:11:28 PM JOY POP3 Connected: To JOY
7:11:28 PM JOY POP3 Listing messages: From JOY
7:11:28 PM GEORGE SMTP Connected: To GEORGE
7:11:28 PM GEORGE SMTP Sending messages
7:11:29 PM JOY POP3 Downloading messages: From JOY
7:11:29 PM GEORGE POP3 Connected: To GEORGE
7:11:29 PM GEORGE POP3 Listing messages: From GEORGE
7:11:30 PM GEORGE POP3 Disconnected: From GEORGE
7:11:30 PM GEORGE POP3 Disconnected: Done
7:11:36 PM JOY POP3 Disconnected: From JOY
7:11:36 PM JOY POP3 Disconnected: Done
7:12:17 PM GEORGE SMTP Disconnected: From GEORGE
7:12:17 PM GEORGE SMTP Disconnected: Done
7:14:43 PM GEORGE SMTP Connecting: To GEORGE
7:14:44 PM GEORGE SMTP Connected: To GEORGE
7:14:44 PM GEORGE SMTP Sending messages
7:15:36 PM GEORGE [SMTP] MailClient.Accounts.SocketException: Sending messages failed due to the following reason:
“Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond…”
at MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Smtp.SmtpAccount.<>c__DisplayClass3_0.b__0()
at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline)
at MailClient.Protocols.Smtp.SmtpAccount.SendAsync(IEnumerable1 items, Action1 sentItem, Action1 completed, CancellationToken cancellationToken) at MailClient.Accounts.BindingAccountBase.SendInternal() at MailClient.Accounts.BindingAccountBase.Send() at MailClient.UI.Forms.formSendMail.<>c__DisplayClass418_4.<Send>b__6(CancellationToken cancellationToken) at MailClient.UI.LongOperationService.<>c__DisplayClass7_0.<MailClient.ILongOperationService.InitOperation>b__0(CancellationToken ct) at MailClient.UI.LongOperationService.<>c__DisplayClass13_01.<b__0>d.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at MailClient.UI.LongOperationService.<>c__DisplayClass13_01.<InitOperation>b__0() at System.Threading.Tasks.Task1.InnerInvoke()
at System.Threading.Tasks.Task.<>c.<.cctor>b__274_0(Object obj)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteEntryUnsafe(Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteFromThreadPool(Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
7:16:26 PM GEORGE SMTP Connecting: To GEORGE
7:16:26 PM GEORGE POP3 Connecting: To GEORGE
7:16:26 PM GEORGE Google Contacts Synchronizing folder list
7:16:26 PM JOY POP3 Connecting: To JOY
7:16:26 PM JOY Google Contacts Synchronizing folder list
7:16:27 PM JOY Google Contacts Synchronizing folder ‘/Contacts’
7:16:27 PM GEORGE Google Contacts Synchronizing folder ‘/Contacts’
7:16:28 PM JOY POP3 Connected: To JOY
7:16:28 PM JOY POP3 Listing messages: From JOY
7:16:28 PM GEORGE SMTP Connected: To GEORGE
7:16:28 PM GEORGE SMTP Sending messages
7:16:29 PM JOY POP3 Downloading messages: From JOY
7:16:29 PM GEORGE POP3 Connected: To GEORGE
7:16:29 PM GEORGE POP3 Listing messages: From GEORGE
7:16:30 PM GEORGE POP3 Disconnected: From GEORGE
7:16:30 PM GEORGE POP3 Disconnected: Done
7:16:38 PM JOY POP3 Disconnected: From JOY
7:16:38 PM JOY POP3 Disconnected: Done
7:17:19 PM GEORGE [SMTP] MailClient.Accounts.SocketException: Sending messages failed due to the following reason:
“Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond…”
at MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Smtp.SmtpAccount.<>c__DisplayClass3_0.b__0()
at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline)
at MailClient.Protocols.Smtp.SmtpAccount.SendAsync(IEnumerable1 items, Action1 sentItem, Action`1 completed, CancellationToken cancellationToken)
at MailClient.Accounts.BindingAccountBase.SendInternal()
at MailClient.Accounts.BindingAccountBase.Send()
at MailClient.Accounts.AccountManager.SendAllInternal()
at MailClient.Accounts.AccountManager.SendAndReceiveAll()
at MailClient.Accounts.AccountManager.timerSendAndReceive_Tick(Object sender, EventArgs e)
at System.Windows.Forms.Timer.OnTick(EventArgs e)
at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(ApplicationContext context)
at MailClient.Program.<>c.b__161_1()
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Delegate.DynamicInvoke(Object[] args)
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at MailClient.Common.UI.Forms.BaseForm.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at Xilium.CefGlue.Interop.libcef.run_message_loop()
at MailClient.Program.Main(String[] args)


And there you have it! The message (with MP4 attachment) was sent regardless. (Its all double dutch to me).
BTW the message has also appeared in MY inbox whilst still in the outbox and received by recipient.

Goodbye eMClient!! Hello Thunderbird.

miércoles 04 noviembre 2020 :: 1140hrs (UTC +01:00)

Hi @geobos

Sorry it took so long to get back.
I am surprised at your connection speed figures as there is so little difference between DL & UL and your Ping is faster than I have ever seen, how did you get them, and who is your ISP? I have a slightly higher spec machine (Xeon W-10885M vPro with 64Gb DDR4 2933MHz RAM), but not that different

These speed tests were run with Ookla
WiFi: Average connection with Grupo MasMovil in Sevilla is:
Ping 21ms, DL 510.79Mbps, UL 73.58Mbps
Ethernet: Average connection with Comvive in Madrid is:
Ping 12ms, DL 983.27Mbps, UL 153.72Mbps

I show these only to illustrate the massive difference between UL & DL

Anyway getting back to your problem, two things:
First, AVG/AVAST (same company) does cause problems, we would never use it and insist that, if installed it is removed, on all of our client company machines and that includes the personal machines that may be used by employees from their homes - we do not approve of their business methods in the way that they collect browsing details.
Second, there is a ‘handshake problem’ that is causing your issues, not eMC.

Finally I have run some tests sending several files of different types, varying in size between 5Mb & 95Mb, plain and compressed with no errors or failures.

Good Luck with Thunderbird

¡Saludos desde la soleada España!

Skybat

emc_forum@compucall.com

Thanks Skybat. Tests with Ookla. Using Telstra in Melbourne Australia.
Today P7ms, DL45.6, UL 38.

I am happy with AVG using DuckDuckGo browser. Have no issues with Tbird at present - forwarding various files without a hiccup! Hence, why the issue with eMC alone!
The ‘handshake’ must have established to send the message-yes? Thus the issue is in dealing with the final response. (Way out of my depth here).
Thank you again for your interest. I note that I am not alone in this matter - jkoplen reports the same.

By the way, I am told we should uninstall 2020 as it has a virus (-: Keep safe. Cheers geobos.