I get emails fairly well (receive the “EWS - An Attempt to connect to [email protected] failed. This could be caused by temporary server unavailability or incorrect settings. Do you want to check the settings?”) as I get by that error and the emails I receive match those on the OWA page. The issue I am having is the inability to get calendar to sync, there are no events in my calendar, I have tried both inside and outside our corp network to sync. Here are the log files from latest connection (note: I have replaced my email and server with [email protected]):
7:44:52 AM Online state: changed to online due to NetworkAvailability 7:44:52 AM [email protected] [Offline Address Book] Synchronizing folder list
7:44:52 AM System.OperationCanceledException: The operation was canceled.
7:44:52 AM at MailClient.Protocols.OfflineAddressBook.OabGenericCommand.Execute(WorkerStatus status)
7:44:52 AM at MailClient.Commands.Command.Process(WorkerStatus status)
7:44:53 AM [email protected] [Exchange Web Services] Synchronizing folder list
7:44:53 AM [email protected] [Exchange Web Services] Uploading item(s) to folder ‘[email protected]/Trash/’
7:44:54 AM [email protected] [Exchange Web Services] Synchronizing folder list
7:44:55 AM [email protected] [Exchange Web Services] Synchronizing folder list
7:44:55 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/Inbox/’
7:44:56 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/Suggested Contacts/’
7:44:56 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/Travel/’
7:44:56 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/quarantine/’
7:44:56 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/IT Tickets/’
7:44:56 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/Calendar/’
7:45:13 AM [email protected] [Exchange Web Services] MailClient.Accounts.ConnectionException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentNullException: Value cannot be null.
7:45:13 AM Parameter name: value
7:45:13 AM at VObject.Values.Text…ctor(String value)
7:45:13 AM at VObject.CalendarProperties.TzName…ctor(String value)
7:45:13 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:45:13 AM — End of inner exception stack trace —
7:45:13 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:45:13 AM at MailClient.Storage.Schedule.TimeZone.Data.TimeZoneRegistry.StoreTimeZone(TimeZoneInfo timeZone)
7:45:13 AM at MailClient.Storage.Schedule.Data.DbScheduleRepository.Store(IScheduleRepositoryItem evnt)
7:45:13 AM at MailClient.Storage.Data.DbRepository1.Add[ST](Object senderContext, IEnumerable1 items)
7:45:13 AM at MailClient.Storage.Attachment.Data.ItemWithAttachmentRepositoryAdapter1.Add[ST](Object senderContext, IEnumerable1 items)
7:45:13 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items, CancellationToken cancellationToken)
7:45:13 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items)
7:45:13 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.StoreItems(SynchronizationType synchronizationType, IEnumerable1 newItems)
7:45:13 AM at MailClient.Protocols.Common.ScheduleItemSynchronizeContext1.StoreItems(SynchronizationType type, IEnumerable1 newItems)
7:45:13 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.Synchronize[T](SynchronizationType synchronizationType, IEnumerable1 items, Func2 getUniqueId, Func3 hasChanged, Func2 isDeleted, Func2 convertItems, Action2 updateItem) 7:45:13 AM at MailClient.Protocols.Exchange.ExchangeItemSynchronizer2.Synchronize(IItemSynchronizeContext1 synchronizeContext, Folder folder, CancellationToken cancellationToken) 7:45:13 AM at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass28_0.b__1(WorkerStatus status, CancellationToken cancellationToken)
7:45:13 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:45:13 AM — End of inner exception stack trace —
7:45:13 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:45:13 AM at MailClient.Commands.Command.Process(WorkerStatus status)
7:45:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:45:38 AM [email protected] [Exchange Web Services] Moving item(s) from folder ‘[email protected]/Inbox/’ to folder '[email protected]/Trash/'
7:45:39 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:45:53 AM [email protected] [Exchange Web Services] MailClient.Accounts.ConnectionException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentNullException: Value cannot be null.
7:45:53 AM Parameter name: value
7:45:53 AM at VObject.Values.Text…ctor(String value)
7:45:53 AM at VObject.CalendarProperties.TzName…ctor(String value)
7:45:53 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:45:53 AM — End of inner exception stack trace —
7:45:53 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:45:53 AM at MailClient.Storage.Schedule.TimeZone.Data.TimeZoneRegistry.StoreTimeZone(TimeZoneInfo timeZone)
7:45:53 AM at MailClient.Storage.Schedule.Data.DbScheduleRepository.Store(IScheduleRepositoryItem evnt)
7:45:53 AM at MailClient.Storage.Data.DbRepository1.Add[ST](Object senderContext, IEnumerable1 items)
7:45:53 AM at MailClient.Storage.Attachment.Data.ItemWithAttachmentRepositoryAdapter1.Add[ST](Object senderContext, IEnumerable1 items)
7:45:53 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items, CancellationToken cancellationToken)
7:45:53 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items)
7:45:53 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.StoreItems(SynchronizationType synchronizationType, IEnumerable1 newItems)
7:45:53 AM at MailClient.Protocols.Common.ScheduleItemSynchronizeContext1.StoreItems(SynchronizationType type, IEnumerable1 newItems)
7:45:53 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.Synchronize[T](SynchronizationType synchronizationType, IEnumerable1 items, Func2 getUniqueId, Func3 hasChanged, Func2 isDeleted, Func2 convertItems, Action2 updateItem)<br>7:45:53 AM at MailClient.Protocols.Exchange.ExchangeItemSynchronizer2.Synchronize(IItemSynchronizeContext1 synchronizeContext, Folder folder, CancellationToken cancellationToken)<br>7:45:53 AM at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass28_0.b__1(WorkerStatus status, CancellationToken cancellationToken)
7:45:53 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:45:53 AM — End of inner exception stack trace —
7:45:53 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:45:53 AM at MailClient.Commands.Command.Process(WorkerStatus status)
7:46:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:47:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:48:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:48:29 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:48:29 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:48:42 AM [email protected] [Exchange Web Services] MailClient.Accounts.ConnectionException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentNullException: Value cannot be null.
7:48:42 AM Parameter name: value
7:48:42 AM at VObject.Values.Text…ctor(String value)
7:48:42 AM at VObject.CalendarProperties.TzName…ctor(String value)
7:48:42 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:48:42 AM — End of inner exception stack trace —
7:48:42 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:48:42 AM at MailClient.Storage.Schedule.TimeZone.Data.TimeZoneRegistry.StoreTimeZone(TimeZoneInfo timeZone)
7:48:42 AM at MailClient.Storage.Schedule.Data.DbScheduleRepository.Store(IScheduleRepositoryItem evnt)
7:48:42 AM at MailClient.Storage.Data.DbRepository1.Add[ST](Object senderContext, IEnumerable1 items)
7:48:42 AM at MailClient.Storage.Attachment.Data.ItemWithAttachmentRepositoryAdapter1.Add[ST](Object senderContext, IEnumerable1 items)
7:48:42 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items, CancellationToken cancellationToken)
7:48:42 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items)
7:48:42 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.StoreItems(SynchronizationType synchronizationType, IEnumerable1 newItems)
7:48:42 AM at MailClient.Protocols.Common.ScheduleItemSynchronizeContext1.StoreItems(SynchronizationType type, IEnumerable1 newItems)
7:48:42 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.Synchronize[T](SynchronizationType synchronizationType, IEnumerable1 items, Func2 getUniqueId, Func3 hasChanged, Func2 isDeleted, Func2 convertItems, Action2 updateItem)<br>7:48:42 AM at MailClient.Protocols.Exchange.ExchangeItemSynchronizer2.Synchronize(IItemSynchronizeContext1 synchronizeContext, Folder folder, CancellationToken cancellationToken)<br>7:48:42 AM at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass28_0.b__1(WorkerStatus status, CancellationToken cancellationToken)
7:48:42 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:48:42 AM — End of inner exception stack trace —
7:48:42 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:48:42 AM at MailClient.Commands.Command.Process(WorkerStatus status)
7:49:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:50:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:51:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:52:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:53:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:54:13 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:54:52 AM [email protected] [Offline Address Book] Synchronizing folder list
7:54:52 AM [email protected] [Exchange Web Services] Synchronizing folder list
7:54:52 AM System.OperationCanceledException: The operation was canceled.
7:54:52 AM at MailClient.Protocols.OfflineAddressBook.OabGenericCommand.Execute(WorkerStatus status)
7:54:52 AM at MailClient.Commands.Command.Process(WorkerStatus status)
7:54:53 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Inbox/'
7:54:53 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Suggested Contacts/'
7:54:53 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Travel/'
7:54:53 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/quarantine/'
7:54:53 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/IT Tickets/'
7:54:54 AM [email protected] [Exchange Web Services] Synchronizing folder '[email protected]/Calendar/'
7:55:07 AM [email protected] [Exchange Web Services] MailClient.Accounts.ConnectionException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentException: Invalid timezone. Id: Russian Standard Time, DisplayName: (UTC+03:00) Moscow, St. Petersburg, Volgograd, Standard name: Standard, Daylight name: null —> System.ArgumentNullException: Value cannot be null.
7:55:07 AM Parameter name: value
7:55:07 AM at VObject.Values.Text…ctor(String value)
7:55:07 AM at VObject.CalendarProperties.TzName…ctor(String value)
7:55:07 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:55:07 AM — End of inner exception stack trace —
7:55:07 AM at MailClient.Schedule.TimeZone.TimeZoneConvert.ToiCalendar(TimeZoneInfo timeZoneInfo)
7:55:07 AM at MailClient.Storage.Schedule.TimeZone.Data.TimeZoneRegistry.StoreTimeZone(TimeZoneInfo timeZone)
7:55:07 AM at MailClient.Storage.Schedule.Data.DbScheduleRepository.Store(IScheduleRepositoryItem evnt)
7:55:07 AM at MailClient.Storage.Data.DbRepository1.Add[ST](Object senderContext, IEnumerable1 items)
7:55:07 AM at MailClient.Storage.Attachment.Data.ItemWithAttachmentRepositoryAdapter1.Add[ST](Object senderContext, IEnumerable1 items)
7:55:07 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items, CancellationToken cancellationToken)
7:55:07 AM at MailClient.Storage.Application.ItemCollection2.AddRange(IEnumerable1 items)
7:55:07 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.StoreItems(SynchronizationType synchronizationType, IEnumerable1 newItems)
7:55:07 AM at MailClient.Protocols.Common.ScheduleItemSynchronizeContext1.StoreItems(SynchronizationType type, IEnumerable1 newItems)
7:55:07 AM at MailClient.Protocols.Common.ItemSynchronizeContext2.Synchronize[T](SynchronizationType synchronizationType, IEnumerable1 items, Func2 getUniqueId, Func3 hasChanged, Func2 isDeleted, Func2 convertItems, Action2 updateItem)<br>7:55:07 AM at MailClient.Protocols.Exchange.ExchangeItemSynchronizer2.Synchronize(IItemSynchronizeContext1 synchronizeContext, Folder folder, CancellationToken cancellationToken)<br>7:55:07 AM at MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass28_0.b__1(WorkerStatus status, CancellationToken cancellationToken)
7:55:07 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:55:07 AM — End of inner exception stack trace —
7:55:07 AM at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
7:55:07 AM at MailClient.Commands.Command.Process(WorkerStatus status)
7:55:13 AM [email protected] [Exchange Web Services] Synchronizing folder ‘[email protected]/Calendar/’
Wow, 1 week and no responses… I guess my search for a mail client continues 
Hello brookmoore,
We’re sorry for the inconvenience. If you’re still interested in eM Client, please message me at [email protected] with a link to this thread and we’ll get back to you with a solution.
Regards
Maurice