[Users] ZCS 8.8.5 locking and reverse proxy issues

[David Touitou]

Malte,

in case you did not notice, another forum thread on this.

https://forums.zimbra.org/viewtopic.php?t=63339
"Since Upgrading To Zimbra 8.8.5, Have Been Getting Numerous Lock Errors"
And it's not NIO this time.

> * https://forums.zimbra.org/viewtopic.php?t=63354&p=280724 "IMAP
> locking, LDAP TLS/OpenDKIM issues after 8.7 to 8.8 upgrade"

This one seems fixed by enabling NIO.

David