Hi, If you are only concern about the email alerts, then perhaps you can just temporarily disable it instead of turning off the VPN. The problem with turning off the VPN, if you are just using auto for the NAT traversal, its UDP port may change once you re-enable the VPN again and if there is a FW upstream, it may drop the packet if it sees a different UDP port or if it unable to clear the previous UDP flow. hope this helps.
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