EDIT: literally just now the triangle went away and the emails from those two accounts came it. Coincidently, I added one of them to my GMail app on my phone then poof the emails showed up in eM Client. Those two seemingly have no ties to each other, I entered the authentication code (I added that to them when I switched the email accounts over to Yahoo’s servers) to add it to the gmail app. Strange … anyway nevermind.
This is the log
eM Client 10.4.4195+7d32f97cfb (Windows)
2:10:19 PM Online state: changed to online due to NetworkAvailability
2:10:20 PM New Comcast IMAP Synchronizing folder '/Inbox'
2:10:20 PM New Comcast CalDAV Synchronizing account properties: For host https://caldav.calendar.yahoo.com/.well-known/caldav
2:10:20 PM Comcast CalDAV Synchronizing account properties: For host https://caldav.calendar.yahoo.com/.well-known/caldav
2:10:20 PM New Comcast CardDAV Synchronizing account properties: For host https://carddav.address.yahoo.com/.well-known/carddav
2:10:20 PM Comcast CardDAV Synchronizing account properties: For host https://carddav.address.yahoo.com/.well-known/carddav
2:10:20 PM Comcast CardDAV Synchronizing account properties: Done
2:10:20 PM Comcast CardDAV Synchronizing folder list
2:10:20 PM New Comcast CardDAV Synchronizing account properties: Done
2:10:20 PM New Comcast CardDAV Synchronizing folder list
2:10:20 PM Comcast [CardDAV] MailClient.Accounts.ConnectionException
at MailClient.Protocols.CalDav.FolderSynchronizer.GetFolderList(IListFoldersProgress progress, Folder homeFolder, CancellationToken cancellationToken)
at MailClient.Protocols.Common.FolderSynchronizer.<>c__DisplayClass21_0.<RunEnqueueGetFolderList>b__0(WorkerStatus status, CancellationToken cancellationToken)
at MailClient.Protocols.CalDav.CalDavGenericCommand.ExecuteAfterBootstrap(WorkerStatus status)
at MailClient.Commands.EnsureBootstrapCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
--- End of stack trace from previous location ---
at MailClient.Storage.Synchronization.FolderSynchronizerExtensions.SynchronizeSubfoldersAsync(IFolderSynchronizer synchronizer, Folder folder, SynchronizationPriority priority, CancellationToken cancellationToken)
AccountId = f079facc-f8e6-4864-be74-5753fc7d7632
AccountName = Comcast
RunInPlace = False
GUIStatus_Exception_Reported = True
2:10:20 PM New Comcast [CardDAV] MailClient.Accounts.ConnectionException
at MailClient.Protocols.CalDav.FolderSynchronizer.GetFolderList(IListFoldersProgress progress, Folder homeFolder, CancellationToken cancellationToken)
at MailClient.Protocols.Common.FolderSynchronizer.<>c__DisplayClass21_0.<RunEnqueueGetFolderList>b__0(WorkerStatus status, CancellationToken cancellationToken)
at MailClient.Protocols.CalDav.CalDavGenericCommand.ExecuteAfterBootstrap(WorkerStatus status)
at MailClient.Commands.EnsureBootstrapCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
--- End of stack trace from previous location ---
at MailClient.Storage.Synchronization.FolderSynchronizerExtensions.SynchronizeSubfoldersAsync(IFolderSynchronizer synchronizer, Folder folder, SynchronizationPriority priority, CancellationToken cancellationToken)
AccountId = 145f2de3-f8cf-4a15-a970-9717d19835e5
AccountName = New Comcast
RunInPlace = False
GUIStatus_Exception_Reported = True
2:10:21 PM Phone Google Contacts Synchronizing folder '/All Contacts'
2:10:21 PM Phone Google Calendar Synchronizing folder list
2:10:21 PM GMail Google Calendar Synchronizing folder list
2:10:21 PM New Comcast [IMAP] MailClient.Accounts.ConnectionException: Failed opening connection to server.
---> System.Net.Sockets.SocketException (11004): The requested name is valid, but no data of the requested type was found.
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
at System.Threading.Tasks.ValueTask.ValueTaskSourceAsTask.<>c.<.cctor>b__4_0(Object state)
--- End of stack trace from previous location ---
at System.Net.Sockets.TcpClient.CompleteConnectAsync(Task task)
at MailClient.Imap.Base.Connection.CreateTcpClientAsync(String hostname, Int32 port, TimeSpan timeout, CancellationToken cancellationToken)
at MailClient.Imap.Base.Connection.<>c__DisplayClass84_0.<<ConnectAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
at MailClient.Imap.Base.TransportPipe.<>c__DisplayClass30_0.<<UpgradeStreamAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
at MailClient.Imap.Base.TransportPipe.UpgradeStreamAsync(Func`2 callback)
at MailClient.Imap.Base.Connection.ConnectAsync(Func`2 getStream, CancellationToken cancellationToken)
at MailClient.Imap.Base.Connection.ConnectAsync(Func`2 getStream, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ConnectionPoolEntry.ConnectInternalAsync(CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at MailClient.Protocols.Imap.ConnectionPoolEntry.ConnectInternalAsync(CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ConnectionPoolEntry.ConnectInternalAsync(CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ConnectionPool.AcquireConnectionAsync(Folder mailFolder, Boolean noSelect)
at MailClient.Protocols.Imap.ConnectionContext.CreateContextAsync(ImapAccount account, Folder folder, Boolean noSelect)
at MailClient.Protocols.Imap.ImapMailSynchronizer.<>c__DisplayClass26_0.<<SynchronizeMessagesAsync>g__CreateConnectionContextAsync|0>d.MoveNext()
--- End of stack trace from previous location ---
at MailClient.Protocols.Imap.ImapMailSynchronizer.SynchronizeMessagesAsync(IItemSynchronizeContext`1 synchronizeContext, Folder folder, Boolean fast, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.Synchronize(IItemSynchronizeContext`1 synchronizeContext, Folder folder, CancellationToken cancellationToken)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass37_2.<EnqueueSynchronize>b__6(WorkerStatus status, CancellationToken ct)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass11_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)
--- End of stack trace from previous location ---
at MailClient.Protocols.Imap.ImapAccount.SynchronizeIntAsync(Boolean forced)
at MailClient.Protocols.Common.SynchronizableMailAccount.<>c__DisplayClass22_0.<<SynchronizeAsync>b__0>d.MoveNext()
AccountId = e944f826-cd58-4227-a673-76d8959406a3
AccountName = New Comcast
IMAP_SERVER_TYPE = Yahoo
RunInPlace = False
GUIStatus_Exception_Reported = True
SocketException
ErrorCode = 11004
NativeErrorCode = 11004
SocketErrorCode = NoData
2:10:21 PM Comcast [IMAP] MailClient.Accounts.ConnectionException: Failed opening connection to server.
---> System.Net.Sockets.SocketException (11004): The requested name is valid, but no data of the requested type was found.
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
at System.Threading.Tasks.ValueTask.ValueTaskSourceAsTask.<>c.<.cctor>b__4_0(Object state)
--- End of stack trace from previous location ---
at System.Net.Sockets.TcpClient.CompleteConnectAsync(Task task)
at MailClient.Imap.Base.Connection.CreateTcpClientAsync(String hostname, Int32 port, TimeSpan timeout, CancellationToken cancellationToken)
at MailClient.Imap.Base.Connection.<>c__DisplayClass84_0.<<ConnectAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
at MailClient.Imap.Base.TransportPipe.<>c__DisplayClass30_0.<<UpgradeStreamAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
at MailClient.Imap.Base.TransportPipe.UpgradeStreamAsync(Func`2 callback)
at MailClient.Imap.Base.Connection.ConnectAsync(Func`2 getStream, CancellationToken cancellationToken)
at MailClient.Imap.Base.Connection.ConnectAsync(Func`2 getStream, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ConnectionPoolEntry.ConnectInternalAsync(CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at MailClient.Protocols.Imap.ConnectionPoolEntry.ConnectInternalAsync(CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ConnectionPoolEntry.ConnectInternalAsync(CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ConnectionPool.AcquireConnectionAsync(Folder mailFolder, Boolean noSelect)
at MailClient.Protocols.Imap.ConnectionContext.CreateContextAsync(ImapAccount account, Folder folder, Boolean noSelect)
at MailClient.Protocols.Imap.ImapMailSynchronizer.DeleteAsync(Folder folder, IEnumerable`1 items, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapMailSynchronizer.Delete(IItemDeleteContext`1 deleteContext, Folder folder, IEnumerable`1 items, CancellationToken cancellationToken)
at MailClient.Protocols.Common.ItemSynchronizer`2.<>c__DisplayClass31_0.<EnqueueDelete>b__0(WorkerStatus status, CancellationToken cancellationToken)
at MailClient.Protocols.Imap.ImapActionCommand.<>c__DisplayClass11_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)
AccountId = 0f573fd4-1548-4afa-b8ab-9be3c7c3b400
AccountName = Comcast
IMAP_SERVER_TYPE = Yahoo
RunInPlace = False
GUIStatus_Exception_Reported = True
SocketException
ErrorCode = 11004
NativeErrorCode = 11004
SocketErrorCode = NoData
2:10:21 PM Phone Google Settings Synchronizing tags
2:10:21 PM GMail Google Settings Synchronizing tags
2:10:21 PM New Comcast CalDAV Synchronizing account properties: Done
2:10:21 PM New Comcast CalDAV Synchronizing folder list
2:10:21 PM Comcast CalDAV Synchronizing account properties: Done
2:10:21 PM Comcast CalDAV Synchronizing folder list
2:10:21 PM GMail Google Calendar Synchronizing folder '/Calendar'
2:10:21 PM Phone Google Calendar Synchronizing folder '/Calendar'
2:10:21 PM Hotmail AirSync Synchronizing folder '/Calendar'
2:10:21 PM New Comcast CalDAV Synchronizing items: For folder New Comcast
2:10:21 PM Comcast CalDAV Synchronizing items: For folder Comcast
2:10:21 PM Phone Google Contacts Synchronizing folder list
2:10:21 PM New Comcast CalDAV Synchronizing items: Sync of New Comcast finished: 0 uploaded, 0 deleted, 0 obsolete, 0 items, 0 downloaded
2:10:21 PM Comcast CalDAV Synchronizing items: Sync of Comcast finished: 0 uploaded, 0 deleted, 0 obsolete, 0 items, 0 downloaded
2:10:21 PM New Comcast CalDAV Synchronizing items: Done
2:10:21 PM Comcast CalDAV Synchronizing items: Done
2:10:21 PM New Comcast CalDAV Synchronizing items: For folder New Comcast/Jon Delano
2:10:21 PM Comcast CalDAV Synchronizing items: For folder Comcast/Jon Delano
2:10:22 PM New Comcast CalDAV Synchronizing items: Sync of New Comcast/Jon Delano finished: 0 uploaded, 0 deleted, 0 obsolete, 0 items, 0 downloaded
2:10:22 PM New Comcast CalDAV Synchronizing items: Done
2:10:22 PM New Comcast CalDAV Synchronizing items: For folder New Comcast
2:10:22 PM New Comcast CalDAV Synchronizing items: Sync of New Comcast finished: 0 uploaded, 0 deleted, 0 obsolete, 0 items, 0 downloaded
2:10:22 PM New Comcast CalDAV Synchronizing items: Done
2:10:22 PM Comcast CalDAV Synchronizing items: Sync of Comcast/Jon Delano finished: 0 uploaded, 0 deleted, 0 obsolete, 0 items, 0 downloaded
2:10:22 PM Comcast CalDAV Synchronizing items: Done
2:10:22 PM Comcast CalDAV Synchronizing items: For folder Comcast
2:10:22 PM Hotmail AirSync Synchronizing folder '/Contacts'
2:10:22 PM Comcast CalDAV Synchronizing items: Sync of Comcast finished: 0 uploaded, 0 deleted, 0 obsolete, 0 items, 0 downloaded
2:10:22 PM Comcast CalDAV Synchronizing items: Done
Recently Comcast has partnered with Yahoo to have Yahoo manage their email services. I can login at mail.yahoo.com without to get the emails. I have been using these email addresses just fine, the new comcast email was changed a week or so ago. The acct Comcast, just 4-5 days ago.
On my other machine I use Thunderbird which is not having this issue; screenshots Imgur: The magic of the Internet