IMAP connection problem to t-online

Mail
1

Hello,
since 1st of Juli i can not connect via IMAP to t-online. I have nothing change, but i always get a connection error, Protocol is attached.
If i try the diagnostic function all worked fine, SMTP -> o.k., IMAP -> o.k.
i have read, that GDTA can be the problem, but i have stopped the firewall and the guard but nothing change.

What can i do ?

14:55:39 Online-Status: geändert zu Online wegen NetworkAvailability
14:55:39 [email protected] [IMAP]  Synchronisiere Unterordner: Für Ordner [email protected]/
14:55:39 [email protected] [IMAP]  Synchronisiere Unterordner: Für Ordner [email protected]/
14:55:40 [email protected] [IMAP]  Der Nachrichtenteil wird heruntergeladen…
14:55:40 [email protected] [IMAP]  Der Nachrichtenteil wird heruntergeladen…: Fertiggestellt
14:55:40 [email protected] [IMAP]  Synchronisiere Unterordner: Fertiggestellt
14:55:40 [email protected] [IMAP]  Synchronisiere Unterordner: Für Ordner [email protected]/Inbox
14:55:40 [email protected] [IMAP]  Synchronisiere Unterordner: Fertiggestellt
14:55:40 [email protected] [IMAP]  Synchronisiere Nachrichten: Für Ordner [email protected]/Inbox
14:55:40 [email protected] [IMAP]  Synchronisiere Unterordner: Fertiggestellt
14:55:40 [email protected] [IMAP]  Synchronisiere Unterordner: Für Ordner [email protected]/Inbox
14:55:40 [email protected] [IMAP]  Synchronisiere Unterordner: Fertiggestellt
14:55:40 [email protected] [IMAP]  Die Nachrichten werden heruntergeladen: Für Ordner [email protected]/Inbox
14:55:40 [email protected] [IMAP]  Die Nachrichten werden heruntergeladen: Fertiggestellt
14:55:40 [email protected] [IMAP]  Synchronisiere Nachrichten: Für Ordner [email protected]/Inbox
14:55:40 [email protected] [IMAP]  Synchronisiere Nachrichten: Für Ordner [email protected]/Inbox
14:55:41 [email protected] [IMAP]  Synchronisiere Nachrichten: Für Ordner [email protected]/Inbox
14:55:41 [email protected] [IMAP]  MailExceptions.ConnectionException:
14:55:41 (Connection terminated)
14:55:41    bei MailClient.Imap.Synchronizer.ImapCommand.ThrowIfConnectionBroken(BasicResponse response)
14:55:41    bei MailClient.Imap.Synchronizer.SynchronizeMessagesCommand.FetchNewMessages(ConnectionContext context, String selectPath, UInt32 idLow, UInt32 idHigh, String idList, Boolean useUid, UInt32 messageCountEstimate)
14:55:41    bei MailClient.Imap.Synchronizer.SynchronizeMessagesCommand.ExecuteInternal(WorkerStatus status)
14:55:41    bei MailClient.Imap.Synchronizer.ImapCommand.Execute(WorkerStatus status)
14:55:41    bei MailClient.Commands.Command.Process(WorkerStatus status)
14:55:42 [email protected] [IMAP]  MailExceptions.ConnectionException:
14:55:42 (Connection terminated)
14:55:42    bei MailClient.Imap.Synchronizer.ImapCommand.ThrowIfConnectionBroken(BasicResponse response)
14:55:42    bei MailClient.Imap.Synchronizer.SynchronizeMessagesCommand.FetchNewMessages(ConnectionContext context, String selectPath, UInt32 idLow, UInt32 idHigh, String idList, Boolean useUid, UInt32 messageCountEstimate)
14:55:42    bei MailClient.Imap.Synchronizer.SynchronizeMessagesCommand.ExecuteInternal(WorkerStatus status)
14:55:42    bei MailClient.Imap.Synchronizer.ImapCommand.Execute(WorkerStatus status)
14:55:42    bei MailClient.Commands.Command.Process(WorkerStatus status)
14:57:58 [email protected] [IMAP]  Synchronisiere Nachrichten: Für Ordner [email protected]/Inbox
14:57:59 [email protected] [IMAP]  Synchronisiere Nachrichten: Für Ordner [email protected]/Inbox
14:58:00 [email protected] [IMAP]  MailExceptions.ConnectionException:
14:58:00 (Connection terminated)
14:58:00    bei MailClient.Imap.Synchronizer.ImapCommand.ThrowIfConnectionBroken(BasicResponse response)
14:58:00    bei MailClient.Imap.Synchronizer.SynchronizeMessagesCommand.FetchNewMessages(ConnectionContext context, String selectPath, UInt32 idLow, UInt32 idHigh, String idList, Boolean useUid, UInt32 messageCountEstimate)
14:58:00    bei MailClient.Imap.Synchronizer.SynchronizeMessagesCommand.ExecuteInternal(WorkerStatus status)
14:58:00    bei MailClient.Imap.Synchronizer.ImapCommand.Execute(WorkerStatus status)
14:58:00    bei MailClient.Commands.Command.Process(WorkerStatus status)

2

Hi, what version of eM Client are you currently using? Does this occur all the time, or does the application function properly most of the time?
Are you able to send/receive emails?

Thank you,
Paul.

3

Hi i use the newest version.I have updated it today to ensure it is not a version trouble.
i can not send or receive any mail, but the testmail of the diagnostic process is in my inbox.

4

The usercredetials are correct because i have verified it with my smartphone

5

Today I was able to test it again and found the problem. It is really GDATA.
If i disable the virus checking of SSL connections, then all work fine.
I will contact GDATA to find out, which modification are necessary to activate SSL connection check for emails, then i let yoou know.

6

Hi Kurt, thank you for keeping me updated, let me know if you need further assistance.

Regards,
Paul.