Home » Kerio User Forums » Kerio Connect » nginx + Connector = corrupted attachments/sync problems (We're having problems with corrupted attachments and calender entries not syncing properly since installing nginx as a frontend)

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Hi all

We've migrated to a new server and at the same time offloaded SSL-termination to an nginx reverse proxy. We got around some timeout issues, everything seemed to work OK.
But during the last week strange problems have come up:
- Some users have problems with meeting invitations, they never get to the recipient, but the sender gets an error message from the offline connector, stating there was a problem saving the object.
- A vast number of users intermittently get corrupted attachments, only through kerio connector. The same mail opened through webmail will open the attachment without any problem. Also connecting in the new way, directly and without the connector, doesn't show the problem (but that's unfortunately not a solution, as we need the full functionality).

As the problem only happens randomly, it's really hard to track down. One very odd situation e.g.:
- Mail from A to B: attachment corrupted at B
- Mail from A to A: attachment OK at A
- Mail from A to B and A: attachment corrupted at both recipients

I don't see any relevant messages in error.log or debug.log so far.
Any ideas, what could be wrong, or what I'm missing?

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