Network service error occurred on login

If you receive the following error while logging into the Zimbra web interface:

"network service error occurred"

You can resolve this by executing the following commands as Zimbra user via SSH:

zmprov ms `zmhostname` zimbraInvalidLoginFilterMaxFailedLogin 0
zmprov mcf zimbraInvalidLoginFilterMaxFailedLogin 0
zmmailboxdctl restart

That should fix the problem and you can then login again to Zimbra.
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