Getting a lot of these messages today.
[IMAP] Cannot open folder “/Sent”. (NO Server Unavailable. 15) (various folders)
I can log into my account on Outlook and the server is working fine so is there an issue with eM Client?
I’m also seeing the same errors
SInce 2 days , me too I get a lot of these messages , in addition the color coding of the received mails in the different folders are again and again lost.
What is wrong and what is the solution ???
I also got these error messages, but it seems that the problem is not at the eM Client app, but rather at the Microsoft server side. I came into this conclusion because I have another PC with much older version of the eM Client and still the same error messages are appearing. I tried to disable the AirSync option from the account settings and also changed IMAP port to 993 and security policy to “Use TLS on special port” and now the errors seem to be gone.
thanks a lot, I tried your settings but it didn’t changed anything at all. I still get these error messages and the messgaes I marked by colours loose the markings and colours again and again
So the problem ist still existing
is there somebody from eMClient Support looking at the problem and looking for a solution ???
Please take care to find a solution !!!
Not sure if Microsoft has done something at the server side, but I haven’t seen the errors in a few days now even when using the original account settings.
I’m still seeing the same errors. I tried reinstalling an earlier version of emclient and that too is giving errors whereas before it was ok.
This seems to be a recent server issue on Microsoft’s side, but we are looking into it and trying to see if there are any workarounds that could help.
Please try this:
● Close the eM Client app and go to your Microsoft account online and remove / revoke the eM Client OAuth token.
● After revoking access, wait ~1 minute before reconnecting. Microsoft’s token revocation can take a short moment to propagate.
● Then reopen eM Client and you should then get a prompt to re-allow eM Client the access to your Microsoft account.
● If the issue persists and if it’s a IMAP or Exchange account, go to Menu > Accounts and try removing and reading the account and see if that fixes it.
Let me know if any of those troubleshooting steps helped.
Thank you!
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Hi Krystof,
sorry for not answering earlier, but I was not home for a long weekend and couldn’t try your workaround.
After coming back to my laptop I still had the same things happening - I got the same error messages for single files and the column “Etikett” on this file (which is defining also the colours for the messages) was deleted.
So now I tried your workaround 5 minutes ago and I will keep you informed about the result.
Thanks a lot
Good evening Krystof,
I’m sorry, but I have bad news.
After trying your workarounds last night, first the problem seemed to be solved. After the workaround until today in the afternoon the error messages and the deleting of the column “Etikett” didn#t happened anymore. But sometime between 17:30 and 18:00 the problem with the error messages and the deleting of the column “Etikett” is back again.
So please continue to take care of the problem trying to find a solution.
Thanks a lot
Hi everyone, there have been articles on Microsoft outages recently, which may be contributing to the spike in these errors: Microsoft Exchange Online outage blocks access to mailboxes
For those who haven’t tried it yet, I want to reiterate that some users have had success with the steps Krystof mentioned earlier. Or, if the error isn’t actually blocking anything for you, you can also temporarily hide it by going to Settings > General > General and unchecking “Show window when an error occurs”.
We’re continuing to monitor and investigate the situation.
Hi Kim-Fisher,
as I said already before , the workaround of Krystof was not successful.
But there is an observation I can add , hoping that it is may be heklpful to solve the problem.
When I start eMClient in the morning here in Germany, the problems doesn’t occur. The problems start around 16:30 german time and remains until the end of the day.
Next day it is again the same procedure.
I hope this is may be helpful to narrow down the problem and to solve it.
I’m in the UK and having the same symptoms. Everything seems to works OK but keep getting the errors from late afternoon
When I start eMClient in the morning here in Germany, the problems doesn’t occur. The problems start around 16:30 german time and remains until the end of the day.
Next day it is again the same procedure.
I’m in the UK and having the same symptoms. Everything seems to works OK but keep getting the errors from late afternoon
That then sounds like “Server problems to me” and not the local client “being that eM Client works fine at certain times of the day”. I would suggest to report that to Microsoft via Community or Phone and let them know what country you connect from and what isp you connect through.
Googling there is also reports of NO Server Unavailable 15 error “with different mail clients as well”. So its not just eM Client.
If you have eg: VPN running “that might be affecting the connections to the Servers at different times of the day”. So if you do have a vpn try completely disabling it to test.