In one of the accounts, receptions of some emails are constantly failing.

Ners · November 4, 2020, 5:11pm

error message:
An error has occurred,
… “failed to load”

data from the log in the attached file.
Please tell me how you can fix it?

Gary · November 5, 2020, 8:16am

One thing you can try is to completely disable any anti-virus/firewall or VPN, then try again.

Ners · November 5, 2020, 11:00am

Hello.
I don’t use VPN, I turned off the antivirus and firewall, the result is negative. There are also other accounts installed in EmClient, everything is fine with them, only one of them creates such problems.

Gary · November 5, 2020, 2:53pm

Go to Menu > Accounts and check the IMAP and SMTP settings for that account. They should be one of the following combinations:

SMTP
Port 587 = Force usage of SSL/TLS
Port 25 = Use SSL/TLS if available
Port 465 = Use SSL/TLS on special port (legacy)

IMAP
Port 993 = Use SSL/TLS on special port (legacy)
Port 143 = Use SSL/TLS if available

Ners · November 6, 2020, 5:30am

I tried all the options, but unfortunately the result is still negative, while the diagnostics show both “OK” connection results

I can note that not all emails give this error, in general, mail from this account is displayed in the program.

I thought that the error appears mainly on advertising emails, but after removing all ads, problems started with regular emails.

Gary · November 6, 2020, 8:45am

Can you go to Menu > Operations, and find the IMAP error in the Log tab. If you paste the error (not the whole log) here, maybe someone will be able to give some solution.

Ners · November 6, 2020, 9:51am

here are some recent error:

10:53:19 .su [IMAP] MailClient.Protocols.Imap.ImapException: Сообщение “кабель” в папке “/Отправленные” не удалось загрузить.
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItems(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.b__2(WorkerStatus status, CancellationToken cancellationToken1)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.<EnqueuePrefetch>b__0() at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline) at MailClient.Protocols.Common.ItemSynchronizer2.EnqueuePrefetch(Folder folder, IEnumerable1 items, Int32 countEstimate, Int32 initialProgress, PrefetchType prefetchType, SynchronizationPriority priority, CancellationToken cancellationToken, Action1 completed)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_1.b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

10:56:43 .su [IMAP] MailClient.Protocols.Imap.ImapException: Сообщение “blank” в папке “/Отправленные” не удалось загрузить.
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItems(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.b__2(WorkerStatus status, CancellationToken cancellationToken1)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.<EnqueuePrefetch>b__0() at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline) at MailClient.Protocols.Common.ItemSynchronizer2.EnqueuePrefetch(Folder folder, IEnumerable1 items, Int32 countEstimate, Int32 initialProgress, PrefetchType prefetchType, SynchronizationPriority priority, CancellationToken cancellationToken, Action1 completed)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_1.b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

11:07:54 .su [IMAP] MailClient.Protocols.Imap.ImapException: Сообщение “Tashkent” в папке “/Отправленные” не удалось загрузить.
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItems(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.b__2(WorkerStatus status, CancellationToken cancellationToken1)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.<EnqueuePrefetch>b__0() at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline) at MailClient.Protocols.Common.ItemSynchronizer2.EnqueuePrefetch(Folder folder, IEnumerable1 items, Int32 countEstimate, Int32 initialProgress, PrefetchType prefetchType, SynchronizationPriority priority, CancellationToken cancellationToken, Action1 completed)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_1.b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

.su [IMAP] MailClient.Protocols.Imap.ImapException: Сообщение “Mashina -2 (7 listov)” в папке “/Отправленные” не удалось загрузить.
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItems(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.b__2(WorkerStatus status, CancellationToken cancellationToken1)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.<EnqueuePrefetch>b__0() at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline) at MailClient.Protocols.Common.ItemSynchronizer2.EnqueuePrefetch(Folder folder, IEnumerable1 items, Int32 countEstimate, Int32 initialProgress, PrefetchType prefetchType, SynchronizationPriority priority, CancellationToken cancellationToken, Action1 completed)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_1.b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

11:26:46 .su [IMAP] MailClient.Protocols.Imap.ImapException: Сообщение “Mshina-2” в папке “/Отправленные” не удалось загрузить.
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItems(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.b__2(WorkerStatus status, CancellationToken cancellationToken1)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.<EnqueuePrefetch>b__0() at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline) at MailClient.Protocols.Common.ItemSynchronizer2.EnqueuePrefetch(Folder folder, IEnumerable1 items, Int32 countEstimate, Int32 initialProgress, PrefetchType prefetchType, SynchronizationPriority priority, CancellationToken cancellationToken, Action1 completed)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_1.b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)

11:36:45 .su [IMAP] MailClient.Protocols.Imap.ImapException: Сообщение “Машина-2 ТН ВЭД” в папке “/Отправленные” не удалось загрузить.
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItemsAsync(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.PrefetchItems(IPrefetchProgress progress, Folder folder, IEnumerable1 items, PrefetchType prefetchType, CancellationToken cancellationToken) at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.b__2(WorkerStatus status, CancellationToken cancellationToken1)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass38_0.<EnqueuePrefetch>b__0() at MailClient.Protocols.Common.AccountBase.RunIfOnline(Action actionIfOnline, Action actionIfOffline) at MailClient.Protocols.Common.ItemSynchronizer2.EnqueuePrefetch(Folder folder, IEnumerable1 items, Int32 countEstimate, Int32 initialProgress, PrefetchType prefetchType, SynchronizationPriority priority, CancellationToken cancellationToken, Action1 completed)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_1.b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass13_0.<.ctor>b__0(WorkerStatus ws, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.ExecuteInternalSync(WorkerStatus status)
at MailClient.Protocols.Imap.ImapActionCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
at MailClient.Commands.SynchronizationQueue.ThreadWorker(Object threadData)
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart(Object obj)