EmClient stopped working with 123-REG IMAP 8/9 Nov 2017

EmClient has stopped working with email receive on 123-REG IMAP. Both on Win7 desktop and Win10 laptop.  Worked fine yesterday, no email received today at all.

123-REG IMAP working fine with my Maildroid on smartphone and with Mozilla that I just configured to see if it worked.

EmClient SMTP working OK and calendar sync with google calendars is also fine. Just receiving mail does not.

Hi Gordon.
Could you paste the IMAP error from Menu > Tools > Operations > Log. Scroll down till you find the IMAP error for that account, select it and then right-click and copy.

Hi Gary,

11:09:05 gordon@finlayhome.co.uk [IMAP]  MailClient.Accounts.ConnectionException:

11:09:05 ()

11:09:05    at MailClient.Protocols.Imap.Synchronizer.ImapCommand.ThrowIfConnectionBroken(BasicResponse response)

11:09:05    at MailClient.Protocols.Imap.Synchronizer.SynchronizeMessagesCommand.FetchNewMessages(ConnectionContext context, String selectPath, UInt32 idLow, UInt32 idHigh, String idList, Boolean useUid, UInt32 messageCountEstimate, Boolean newestFirst, Boolean breakOnNewMessages)

11:09:05    at MailClient.Protocols.Imap.Synchronizer.SynchronizeMessagesCommand.ExecuteInternal(WorkerStatus status)

11:09:05    at MailClient.Protocols.Imap.Synchronizer.ImapCommand.Execute(WorkerStatus status)

11:09:05    at MailClient.Commands.Command.Process(WorkerStatus status)

Also, every time I start a session, once the inbox has been downloaded,  I also get a pop up saying

(my email address): Connecting to (my email address) failed

[IMAP] An attempt to connect to (my email address) failed.  This could be caused by temporary server unavailability or incorrect settings.  Do you want to check the settings.

When I do, and run the diagnosis, both SMTP and IMAP pass without fail.  This doesn’t seem to prevent emails from arising.

I have done a lot of clearing out of old files and it seems a bit better.

Many thanks.


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Sorry, Gordon. I though it might be something obvious, but don’t see anything I can help with. Seems there are whole host of IMAP questions along these line recently, but no solution as yet.

Hello Gordon,
we will need to see IMAP logs to analyze the problem.

Please go to Menu>Tools>Settings>Advanced.
Enable IMAP logs for the affected account.
Restart eM Client.
Wait for the error to pop up again.
Restart the program again.
Send me the created logs and the link to this forum post to rust@emclient.com

Location of the log files is specified in the Advanced settings.