How to fix FileZilla's response: "550 The supplied message is incomplete. The signature was not verified."?

ftp ftps
Ruston picture Ruston · Feb 24, 2015 · Viewed 13.5k times · Source

How to fix FileZilla's response:

550 The supplied message is incomplete. The signature was not verified.

What is wrong with this? Is this in my hosting site or in my FileZilla setup?

Answer

Martin Prikryl picture Martin Prikryl · Feb 24, 2015

This error is returned by Windows IIS server due to a known bug.

For details see Microsoft article FIX: "The supplied message is incomplete" error when you use an FTPS client to upload a file in Windows.

Quote from my article about the bug.

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