"An unknown error has occurred" at login screen

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"An unknown error has occurred" at login screen

Postby ExTechOp » Wed Apr 29, 2020 7:21 pm

Unknown_error.png (18.6 KiB) Viewed 1005 times
This extremely uninformative error message "An unknown error has occurred" comes up when you try to log in the first time with Firefox onto our Zimbra server. Following attempts at logging in will work as expected. Nothing seems to end up in the server logs. Does anyone have ideas what's going on here, this has been around for us on several Zimbra versions?

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Re: "An unknown error has occurred" at login screen

Postby dijoux » Fri Dec 18, 2020 4:55 am


You could try to check the result of this command on your mailbox(es) server(s) :
As zimbra user (su - zimbra)

Code: Select all

zmprov gs `zmhostname` zimbraMailURL

If it's diffenrent to "/", your problem is that on your first login attemp, this url part is missing... look at the url at your second attemp...

To solve this you can enter these commands as zimbra user on your mailbox(es) server(s) :

Code: Select all

zmprov ms `zmhostname` zimbraMailURL /
zmmailboxdctl restart
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Re: "An unknown error has occurred" at login screen

Postby rleiker » Sat Dec 19, 2020 1:15 am

This is a known issue and is described under the heading "Occasional Error Upon Logging In To The Zimbra Web Client" in this posting: https://forums.zimbra.org/viewtopic.php?f=9&t=69008#p299896 . In that same post, there is also mention of a possible workaround too.

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