[solved] Fix mail message

Hi together,

I imported some old mail messages in one mailbox via pst-migration-tool. Looking at the messages in WebApp, they don´t have a date and in the preview pane I see the message “This message is corrupt and will not be displayed correctly, Click here to fix it.” Once I clicked on it, I confirm the pop-up and the message is corrected, I can see the received date and everything is fine.

Is there a way to fix this via admin-tool? kopano-fsck is only fixing calendars etc. but not the mail messages in my inbox. I don´t want to click around 1400 mails to fix them manually.

Thanks for your help


Hi @rittel ,

I think the better place to fix this would be the pst migration tool. You sadly did not mention the version of Kopano you are experiencing this with. I would suggest trying to reimport your message with the migration tool supplied with the nightly release and if the issue then still occurs we would need to have a look at (some) of your messages in the pst file.

If you have a valid subscription you could submit your pst file through our support. If you are running the community builds you could submit your pst to feedback at kopano dot io.

Hi and thanks for your quick answer, Felix.

My core version is 8.3.1-35. Thing is, these e-mails were really old .eml-messages. I imported them to Windows Live Mail and afterwards exported them to an outlook-pst file which I imported via the kopano-migration tool.

Importing them again, ok, means a lot of manual comparison which ones to delete, but I will go this way. Just thought that maybe there is a admin command as the webapp somehow is able to fix the messages directly (therefore I thought the funtionality is there).

Will update the message here, once I was able to re-import the messages!


Hi @rittel ,

Small tip. For testing purposes you should import these into a testing account.


wollte noch eine Rückmeldung geben. Es lag nicht am Import-Tool, sondern an der PST-Datei bzw. den Mail darin. Beim Weg von EML > Windows Live Mail > Outlook ging etwas nicht sauber rüber. Habe dann die EML-Dateien direkt mit einem Tool in Outlook importiert und konnte diese dann sauber mit kopano-migration-pst importieren!

Danke für die Hilfe!


Sorry, replied in german :-(

So, problem was not the kopano import tool, but the messages within the PST file. Somehow on the way from EML > Windows Live Mail > Outlook something went wrong.
I then imported the EML files directly into Outlook with a free tool and they were imported correctly. I then used kopano-migration-pst to import the PST file and everything worked fine!

Thanks for the help