Hi Jenny,
You can control which events generate emails from the Event Management page on the SZ GUI
![Image_ images_messages_5f91c457135b77e247a33faf_28df334356f727604b3f2196c9e78020_RackMultipart2020052023671py2b-3424b887-54b8-4ae8-9312-9b3dd5a04098-344875018.png1589978829 Image_ images_messages_5f91c457135b77e247a33faf_28df334356f727604b3f2196c9e78020_RackMultipart2020052023671py2b-3424b887-54b8-4ae8-9312-9b3dd5a04098-344875018.png1589978829](/t5/image/serverpage/image-id/1471i673D9613CA7B18DC/image-size/large?v=v2&px=999)
To enable or disable email option per event, highlight the event and hit enable or disable pull down menu
![Image_ images_messages_5f91c457135b77e247a33faf_dff4d591a1fa631a1978fad3e977332b_RackMultipart20200520149161qaq-c6fc9529-f1bf-495c-a26d-bfb06f44b42b-1827858644.png1589979000 Image_ images_messages_5f91c457135b77e247a33faf_dff4d591a1fa631a1978fad3e977332b_RackMultipart20200520149161qaq-c6fc9529-f1bf-495c-a26d-bfb06f44b42b-1827858644.png1589979000](/t5/image/serverpage/image-id/1472i2738799B2C245991/image-size/large?v=v2&px=999)
![Image_ images_messages_5f91c457135b77e247a33faf_bddc3240777583712eee3e097e62409a_RackMultipart20200520111837puw-51aec72d-8517-4c65-9361-9abe07d89db4-1717990706.png1589979053 Image_ images_messages_5f91c457135b77e247a33faf_bddc3240777583712eee3e097e62409a_RackMultipart20200520111837puw-51aec72d-8517-4c65-9361-9abe07d89db4-1717990706.png1589979053](/t5/image/serverpage/image-id/1473iC579146CE27D5117/image-size/large?v=v2&px=999)
AP disconnection is preceded by AP heartbeat errors (314) then AP disconnect (303) and then reconnect (312). You may also be receiving a change of control plane event if you have multiple nodes cluster (311). You can determine which of these messages are important enough to notify you by email.
DB persistence determines if the event is stored in the SZ.
I hope this information is helpful
Thanks
Albert